# Lennart Ljung, Publication list

## Books

**B-01**-
T Glad and L Ljung:
*Reglerteknik - Grundläggande teori*, Studentlitteratur, Lund 1981. ISBN 91-44-17891-3, 200 pages. , ISBN 91-44-17892-1, 250 pages, Second edition 1989. **B-02**-
L Ljung:
*Reglerteori - Moderna Analys- och Syntesmetoder*, Studentlitteratur, ISBN 91-44-17901-4, 279 pages, Lund 1981. **B-03**-
L Ljung and T Söderström:
*Theory and Practice of Recursive Identification*, MIT Press. Cambridge, Mass. ISBN 0-262-12095- X, 529 pages, 1983. **B-04**-
L Ljung:
*System Identification - Theory for the User*, Prentice-Hall, Englewood Cliffs, N J, 1987 ISBN 0-13-881640, 519 pages. Chinese translation: East China Normal University Press, Shanghai, 1990. Russian translation: Nauka, Moscow, 1991. **B-05**-
L. Ljung and T. Glad:
*Modellbygge och Simulering*, Studentlitteratur, Lund, 378 pages, ISBN 91-44-31871-5, 1991. **B-06**-
L. Ljung, G. Pflug and H. Walk:
*Stochastic Approximation and Optimization of Random Systems*, Birkhäuser, Berlin, 113 pages ISBN 3-7643-2733-2, 1992. **B-07**-
L. Ljung and T. Glad
*Modeling of Dynamic System*, Prentice Hall, Englewood Cliffs, NJ, 361 pages, ISBN 0-13-597097-0, 1994. **B-08**-
P. Lindskog, T.Glad and L.Ljung
*Modellbygge och simulering; Övningsbok*, Studentlitteratur, Lund, ISBN 91-44-00537-7, 233 pages, 1997. **B-09**-
T. Glad and L. Ljung:
*Reglerteori. Flervariabla och olinjära metoder*, Studentlitteratur, Lund, ISBN 91-44-00472-9, 512 pages, 1997. 2:a upplagan 2003 **B-10**-
L Ljung:
*System Identification - Theory for the User, 2nd Edition*, Prentice-Hall, Upper Saddle River, N J, 1999 ISBN 0-13-656695-2, 607 pages. Chinese edition 2002. **B-11**-
T.Glad and L Ljung:
*Control Theory: Multivariable and Nonlinear Methods*, Taylor & Francis, London, 2000, ISBN 0-7484-0878-9, 467 pages. **B-12**-
F. Gustafsson, L. Ljung and M. Millnert:
*Signalbehandling*, Studentlitteratur, Lund 2001, ISBN 91-44-01709-X, 455 pages. **B-13**-
L. Ljung and T. Glad:
*Modellbygge och Simulering, 2nd edition*, Studentlitteratur, Lund, 422 pages, ISBN 91-44-02443-6, 2004.## Manual

**M-01**-
L. Ljung:
*System Identification Toolbox - for use with MATLAB*, User's Guide.The Mathworks, Inc. Sherborn, Mass ,1988, 98 pages. 3rd edition, 1991, 204 pages, 4th edition 1995, 249 pages, 5th edition 2000, 350 pages.## Journal Papers

**JP-01**-
L Ljung: Comments on A Stochastic approximation method:
*IEEE Trans.*. Vol SMS-2 No 5, pp 680-691, November 1972. **JP-02**-
L Ljung: Asimptoticheskiye dispersii algoritmov
stochasstichskoy approksimatssi. (In
Russian).
*Automatika i Telemekhanika*, No 9, September 1974, pp 178-182. English translation: Asymptotic Dispersion of Stochastic Approximation Algorithms. In Automation and Remote Control, pp 1532-1536, February 1975. **JP-03**-
L Ljung, I Gustavsson and T Söderström:
Identification of linear, multivariable
systems operating under linear feedback control.
*IEEE Trans. Automatic Control*. Vol AC-19, No 6, pp 836-840, December 1974. **JP-04**-
J Casti and L Ljung: Some new analytic and computational results for operator Riccati equations.
*SIAM J Control*, Vol 13, No 4, July 1975, pp 817- 826. **JP-05**-
B Hagberg, N-H Schoon, L Ljung and K Mårtensson: Kinetic aspects of the acid sulfite cooking process. Part 4: Optimal control for maximizing the pulp yield.
*Svensk Papperstidning*, Vol 78, No 2, pp 56-60, 1975. **JP-06**- T Söderström, I Gustavsson and L Ljung:
Identifiability conditions for linear systems operating in closed
loop,
*Int. J. Control*, Vol 21, No 2, pp 234-255, February 1975. **JP-07**-
L Ljung and S Lindahl: Convergence properties of a method for
state estimation in power
systems.
*Int. J. Control*, Vol 22 No 1, pp 113-118, July 1975. **JP-08**-
L Ljung, T Söderström and I Gustavsson: Counterexamples to general convergence of a commonly used recursive identification method,
*IEEE Trans. Automatic Control*, AC-20, No 5, pp 643-652, October 1975. **JP-09**-
L Ljung, T Kailath and B Friedlander: Scattering theory and
linear least squares estimation, Part I: Continuous time problems.
*Proc IEEE*Vol 64, No 1,, pp 131-139, January 1976. **JP-10**-
B Friedlander, T Kailath and L Ljung: Scattering theory and linear
least squares estimation, Part II Discrete time problems,
*J Franklin Inst*, Vol 301, No 1, pp 71-82, January 1976. **JP-11**-
L Ljung and T Kailath: A unified approach to smoothing formulas,
*Automatica*, Vol 12, No 2, pp 147-157, March 1976. **JP-12**-
T Kailath and L Ljung: The Asymptotic behavior of constant
coefficient Riccati differential equations.
*IEEE Trans*, Vol AC-21, No 3 pp 385-388, June 1976. **JP-13**-
L Ljung and and T Kailath: Backwards Markovian models for second- order stochastic processes,
*IEEE Trans.IT*, IT-22, No 4, pp 488-491, July 1976. **JP-14**-
L Ljung: Consistency of the least squares identification method,
*IEEE Trans. Automatic Control*, Vol AC-21, No 5, pp 779-781, October 1976. **JP-15**-
L Ljung: On consistency and identifiability,
*Mathematical programming*study No 5, (North-Holland Publishing Co), pp 169-190, 1976. **JP-16**-
L Ljung: On the consistency of prediction error identification methods. In
*System Identification, Advances and Case Studies*(R K Meher and D G Lainiotis, Eds) Academic Press, NY, pp 121-164, 1976. **JP-17**- T Söderström, L Ljung and I Gustavsson:
Identifiability conditions for linear multivariable systems
operating under feedback.
*IEEE AC*Trans. Vol AC-21, No 6, pp 837-840, December 1976. **JP-18**-
I Gustavsson, L Ljung and T Söderström: Identification
of processes in Closed loop - Identifiability and accuracy aspects.
*Automatica*, Vol 13, No 1, January 1977, pp 59-75. **JP-19**-
L Ljung and T Kailath: Efficient change of initial conditions, dual Chandrasekhar equations, and some applications.
*IEEE Trans. Automatic Control*. Vol AC-22, No 3, pp 443-447, June 1977. **JP-20**-
L Ljung: Analysis of recursive, stochastic algorithms.
*IEEE Trans. AC*Vol AC-22, No 4, pp 551-575, August 1977. **JP-21**-
L Ljung: On positive real transfer functions and the
convergence of some recursive schemes.
*IEEE Trans. Automatic Control*, Vol AC-22 No 4, pp 539-551, August 1977. **JP-22**-
K J Åström, U Borisson, L Ljung and B Wittenmark: Theory and applications of self-tuning regulators.
*Automatica*, Vol 13, No 5, pp 457-476, September 1977. **JP-23**-
L Ljung, M Morf and D Falconer: Fast calculation of gain matrices for recursive estimation schemes.
*Int. J Control*, Vol 27, No 1, pp 1-19, January 1978. **JP-24**-
T Söderström, L Ljung and I Gustavsson: A theoretical analysis of recursive identification methods.
*Automatica*, vol 14, No 3, pp 231-244, May 1978. **JP-25**-
L Ljung: Strong convergence of a stochastic approximation algorithm.
*Annals of Statistics*, Vol 6, No 3, pp 680-696, May 1978. **JP-26**-
L Ljung: Convergence of an adaptive filter algorithm.
*Int. J Control*, Vol 27, No 5, pp 673-693, May 1978. **JP-27**-
T Kailath, B C Levy, L Ljung and M Morf: Fast time-invariant implementations of Gaussian signal detectors.
*IEEE Trans.IT*, Vol IT- 24, No 4, pp 469-477, July 1978. **JP-28**-
B Friedlander, T Kailath M Morf and L Ljung: Extended Levinson and Chandrasekhar equations for general discrete-time linear estimation problems.
*IEEE Trans. Automatic Control*, Vol AC-23, No 4, pp 653-659, August 1978. **JP-29**-
D D Falconer and L Ljung: Application of fast Kalman estimation to adaptive equalization.
*IEEE Trans.Comm,*Vol COM-26, No 10, October 1978, pp 1439- 1446. Reprinted in*Adaptive Signal Processing*(L H Sibul, Ed); IEEE Press 1987. **JP-30**-
L. Ljung: Convergence analysis of parametric identification methods,
*IEEE Trans. Autom. Control*, Vol AC-23, No 5, pp 770-783, October 1978. **JP-31**-
T Kailath, L Ljung and M Morf: Generalized Krein-Levinson
equations for efficient calculation of Fredholm resolvents
of non-displacement kernels. In
*Topics in functional analysis, Advances in Mathematics Supplementary Studies*, Vol 3, Academic Press, pp 169-184, 1978. **JP-32**-
L Ljung: Asymptotic behavior of the extended Kalman filter as a parameter estimator for linear systems.
*IEEE Trans.on Automatic Control*, vol AC-24, pp 3-50, February 1979. **JP-33**-
L Ljung and P E Caines: Asymptotic normality of prediction error estimators for approximate models.
*Stochastics*, vol 3, pp 29-46, 1979. **JP-34**-
B Levy, T Kailath, L Ljung and M Morf: Fast time-invariant implementations for linear least squares smoothing filters.
*IEEE Trans. Automatic Control*. vol AC-24, No 5, pp 770-774, October 1979. **JP-35**-
B Friedlander, M Morf, T Kailath and L Ljung: New inversion formulas for matrices classified in terms of their distance from Toeplitz matrices.
*Linear Algebra and its Applications*, Vol 27, pp 31-60, 1979. **JP-36**-
T Kailath, B Levy, L Ljung and M Morf: The factorization and representation of operators in the algebra generated by Toeplitz operators,
*SIAM J Appl Math*, Vol 37, No 3, pp 467-484, 1979. **JP-37**-
L Ljung: Comments on nonconvergence of the approximate maximum likelihood identification algorithm,
*Automatica*, Vol 16, pp 219-220, 1980. **JP-38**-
L Ljung and K Glover: Frequency domain versus time domain methods in system identification,
*Automatica*, Vol 17, No 1, pp 71-86, 1981. **JP-39**-
L Ljung: Analysis of a general recursive prediction error identification algorithm,
*Automatica,*Vol 17, No 1, pp 89-99, 1981. **JP-40**-
I Gustavsson, L Ljung and T Söderström: Choice and effect of different feedback configurations. In P Eykhoff (ed):
*Trends and progress in system identification,*pp 367-388, Pergamon Press, Oxford 1981. **JP-41**-
S Ljung and L Ljung: Fast numerical solution of Fredholm integral equations with stationary kernels,
*BIT*, 22, pp 54-72, 1982. **JP-42**-
L Ljung: Aspects on the system identification problem.
*Signal Processing*, Vol 4, pp 445-456, 1982. **JP-43**-
A J M van Overbeek and L Ljung: On-line structure selection for multivariable state space models,
*Automatica*, Vol 18, No 5, pp 529- 543, 1982. **JP-44**-
T Kailath and L Ljung: Two filter smoothing formulae by diagonalization of the Hamiltonian equations.
*Int. J. Control*, Vol 36, No 4, pp 663-673, 1982. **JP-45**-
T Kailath, L Ljung and M Morf: Recursive input-output and state space solutions for continuous-time linear estimation problems,
*IEEE Trans. Automatic Control*, Vol AC-28, pp 897-906, September, 1983. **JP-46**-
L Ljung: Analysis of stochastic gradient algorithms for linear
regression problems,
*IEEE Trans. Information Theory*, Vol IT-30, No 2, pp 151-160, 1984. **JP-47**-
Z-D Yuan and L Ljung: Black-box identification of multivariable transfer functions - Asymptotic properties and optimal input design:
*Int. J. of Control*, Vol 40, No 2, pp 233-256, 1984. **JP-48**-
L Ljung and Z-D Yuan: Black-box identification of transfer functions: Asymptotic results for increasing model order and data records,
*IMA Journal of Mathematical Control and Information*, Vol 1, No 4, pp 323-338, 1984. **JP-49**-
L Ljung: Modern reglerteori i processindustrin (Advanced process control),
*Svensk papperstidning*, Vol 27, No 12, pp 14-17, 1984. **JP-50**- B D O Anderson and L Ljung (Eds).
*Automatica*, Vol 20, No 5, Special Issue on Adaptive Control, September 1984. **JP-51**-
G Solbrand, A Ahlin and L Ljung: Recursive methods for off-line identification,
*Int. J. Control*, Vol 41, No 1, PP 177-191, 1985. **JP-52**-
L Ljung: Estimation of parameters in dynamical systems in
*Handbook of Statistics*, Vol 5:*Time series in the time domain*(E J Hannan, P R Krishnaiah and M M Rao Eds): Elsevier Science Publishers, pp 189- 211, 1985. **JP-53**-
L Ljung and Z-D Yuan: Asymptotic properties of black-box
identification of transfer
functions.
*IEEE Trans Automatic Control,*Vol AC-30, pp 514-553, 1985. **JP-54**-
S Ljung and L Ljung: Error propagation properties of recursive least squares adaptation algorithms.
*Automatica*, Vol 21, No 2, pp 157-167, 1985. Reprinted in*Adaptive Signal processing*(L H Sibul, ED) IEEE Press, 1987. **JP-55**-
E Trulsson and L Ljung: Adaptive control based on explicit criterion minimization.
*Automatica*, Vol 21, pp 385-399, July 1985. **JP-56**-
L Ljung: Asymptotic variance expressions for identified
black-box transfer function models.
*IEEE Trans. Automatic Control*. Vol AC- 30 pp 834-844, September 1985. **JP-57**-
T Kailath and L Ljung: Explicit strict sense state-space
realization of nonstationary processes.
*Int. J. Control*. Vol 42 No 5 pp 971-988, 1985. **JP-58**-
L Ljung: On the estimation of transfer
functions.
*Automatica*, Vol 21 pp 677-696, 1985. **JP-59**-
Z-D Yuan and L Ljung: Unprejudiced optimal open loop input design for identification of transfer functions.
*Automatica*, Vol 21 pp 697-708, 1985. **JP-60**-
L Ljung: System identification, In
*Uncertainty and Control*(J Ackermann, ed) Lecture notes in control and information sciences, vol 79, Springer-Verlag, Berlin, 1985. **JP-61**-
L. Ljung and K J Åström (eds): Identification, adaptive and stochastic control (Proc. 9th IFAC Congress, Budapest, 1984.) IFAC Proceedings Series No 2, 1985.
**JP-62**-
B Wahlberg and L Ljung: Design variables for bias distribution in transfer function estimation.
*IEEE Trans.Automatic Control*, Vol AC-31, No 2, pp 134-144, 1986. **JP-63**-
L. Ljung: Parametric methods for identification of transfer
functions of linear systems. In
*Advances in Control*, Vol XXV, pp 87-118 (C.L. Leondes, Ed) Academic Press, New York, 1987. **JP-64**-
L. Ljung: Adaptation using recursive parameter estimation.
*Advances in Statistical Signal Processing*. Vol 1(V. Poor, ed), Jai Press Inc. pp 287-327, 1987. **JP-65**-
L. Ljung Error propagation in adaptation algorithms with poorly exciting signals.
*Annales des Tilhcommunications*, Vol 41, no 5- 6 pp 322-327, 1987. **JP-66**-
F. Fnaiech and L. Ljung: Recursive identification of bilinear
systems.
*Int. J. Control*, pp 453-470, November 1986. **JP-67**-
M. Gevers and L. Ljung: Optimal experimental designs, with respect to the intended model application.
*Automatica*, pp 543- 553, September 1986. **JP-68**-
L. Ljung: Frequency and time domain methods in system identification.
*Modelling, Identification and Robust Control*. (C.I. Byrnes and A. Eds), pp 615-624, Elsevier Science Publishers, 1986. **JP-69**-
L. Ljung: The recursive identification problem in control and signal processing applications.
*Sequential methods in statistics*, Banach Center Publication Vol 16, pp 357-365, 1985. **JP-70**-
L. Ljung: Adaptive control: Positive - real condition,
*Systems and control encyclopedia*(M.G. Singh Ed). Pergamon Press, pp 51-54, 1987. **JP-71**-
L. Ljung: Adaptive controllers: Convergence analysis,
*Systems and Control Encyclopedia*(M.G. Singh Ed). Pergamon Press, pp 55-60, 1987. **JP-72**-
L. Ljung: Extended Kalman filter,
*Systems and Control Encyclopedia*(M.G. Singh Ed). Pergamon Press, pp 1581, 1987. **JP-73**-
L. Ljung: Extended least squares method,
*Systems and Control Encyclopedia*(M.G. Singh Ed). Pergamon Press, pp 1581, 1987. **JP-74**-
L. Ljung: Generalized least squares method,
*Systems and Control Encyclopedia*(M.G. Singh Ed). Pergamon Press, pp 2005, 1987. **JP-75**-
L. Ljung: Identification: Asymptotic Theory,
*Systems and Control Encyclopedia*(M.G. Singh Ed). Pergamon Press, pp 2235-2239, 1987. **JP-76**-
L. Ljung: Identification: Basic problem,
*Systems and Control Encyclopedia*(M.G. Singh Ed). Pergamon Press, pp 2239-2245, 1987. **JP-77**-
L. Ljung: Identification: Least squares method,
*Systems and Control Encyclopedia*(M.G. Singh Ed). Pergamon Press, pp 2278-2284, 1987. **JP-78**-
L. Ljung: Identification: Maximum likelihood method,
*Systems and Control Encyclopedia*(M.G. Singh Ed). Pergamon Press, pp 2284- 2287, 1987. **JP-79**-
L. Ljung: Identification: Recursive method,
*Systems and Control Encyclopedia*(M.G. Singh Ed). Pergamon Press, pp 2310-2314, 1987. **JP-80**-
L. Ljung: Identification: Time-domain methods,
*Systems and Control Encyclopedia*(M.G. Singh Ed). Pergamon Press, pp 2314-2320, 1987. **JP-81**-
L. Ljung: Recursive stochastic algorithms: Ordinary differential equation method,
*Systems and Control Encyclopedia*(M.G. Singh Ed). Pergamon Press, pp 3991-3994, 1987. **JP-82**-
L. Ljung: Stochastic adaptive control algorithms convergence analysis: Ordinary differential equation approach,
*Systems and Control Encyclopedia*(M.G. Singh Ed). Pergamon Press, pp 4602-4603, 1987. **JP-83**-
L. Ljung (Ed): Control Theory 1984-1986. A progress report from IFAC's Technical Committee on Theory.
*Automatica*, vol 24, No 4, pp 573-583, 1988. **JP-84**-
K. Wang and L. Ljung: A discussion of adaptive stabilization and robust adaptive control,
*Systems and Control Letters*, 12, pp 53-56, 1989. **JP-85**-
S. Gunnarsson and L. Ljung: Frequency domain tracking characteristics of adaptive algorithms,
*IEEE Trans.on Acoustics Speech and Signal Processing.*Vol ASSP-37, pp 1072-1089, 1989. **JP-86**-
L. Ljung and S. Gunnarsson: Adaptation and tracking in system identification- A Survey,
*Automatica*, Vol 26, pp 7-22, 1990. **JP-87**-
L. Ljung: Issues in system Identification.
*IEEE Control Systems Magazine*, Vol 11, No 1, pp 25, 1991. **JP-88**-
K. Forsman, L. Ljung, M. Millnert and A. Skeppstedt: Merging reasoning
and filtering in a Bayesian framework - some sensitivity and
optimality aspects.
*Int. J. of Adaptive Control and Signal Processing*, Vol 5 No 2 , pp 93-106, 1991. **JP-89**-
L. Ljung and P. Priouret: A result of the mean square error
obtained using general tracking algorithms,
*Int. J. of Adaptive Control and Signal Proc.*. Vol 5, 231-250, 1991. **JP-90**-
H. Hjalmarsson, B. Wahlberg and L. Ljung: Assessing Model Quality from Data, In Proc.
*IIASA Symp. on Modeling and Control of Uncertain Systems*, Sopron, Hungary. Published by Birkhduser, Boston, 1991. **JP-91**-
L. Ljung and B Wahlberg: Asymptotic properties of the
least-squares method for estimating transfer
functions and disturbance spectra.
*Adv. Appl. Prob.*Vol 24, pp 412-440, 1992. **JP-92**-
L. Ljung A. Skeppstedt and M. Millnert: Construction of composite models from observed data.
*Int. J. of Control*, Vol 55, No 1, pp 141-152, 1992. **JP-93**-
L. Ljung and P. Priouret: Remarks on the mean square tracking error
*Int. J. of Adaptive Control and Signal Processing*, Vol 5, 395-403, 1992. **JP-94**-
B. Wahlberg and L. Ljung: Hard frequency-domain model error bounds from least-squares like identification techniques.
*IEEE Trans.on Automatic Control*, AC-37:900-912, 1992. **JP-95**-
H. Hjalmarsson and L. Ljung: Estimating model variance in the
case of undermodeling.
*IEEE Trans. on Automatic Control*, AC-37 , pp 1004-1008, July 1992. **JP-96**-
L. Ljung: An introduction to system identification concepts. in
*Theory and control of dynamical systems*A.E. Andersson , S.I. Anderson and U. Ottoson (Eds). World Scientific, London, pp 120-130, 1992. **JP-97**-
L. Ljung: A discussion of model accuracy in system identification.
*Int. J. Adaptive Control and Signal Processing*, vol 6, pp 161-171, 1992. **JP-98**- L. Ljung: O tochnosti modeli v identifikatsi sistem,
*Tekhicheskaya Kibernetika*, 6:55-64, 1992. **JP-99**- B. Wahlberg, L. Ljung and T. Söderström: On sampling of
continuous time stochastic processes.
*Control Theory and Advanced Technology*, (1):99-113, 1993. **JP-100**-
L. Guo, L. Ljung and P. Priouret: Performance analysis of the
forgetting factor RLS algorithm.
*Int. J. of Adaptive Control and Signal Processing,*pp 525-237, 1993. **JP-101**-
L. Ljung: General structure of adaptive algorithms: Adaptation and
tracking. In N. Kalouptsidis and S. Theodoridis, editors,
*Adaptive System Identification and Signal Processing Algorithms*, pages 58-83. Prentice Hall Int., 1993 **JP-102**-
L. Ljung: Identification of linear systems. In D. A. Linkens, editor,
*CAD for Control Systems*, pages 147-165, Marcel Dekker, New York, 1993. **JP-103**-
L. Ljung and T. Glad: On global identifiability of arbitrary
model parameterization,
*Automatica*, 30(2), pp 265-237, February 1994. **JP-104**-
L. Ljung: System identification in a MIC perspective.
*Modelling Identification and Control*, (3): pp 153-160, 1994. **JP-105**-
L. Guo and L. Ljung.
Exponential stability of general tracking algorithms.
*IEEE Trans. Automatic Control*, 40:1376-1387, August 1995. **JP-106**-
L. Guo and L. Ljung.
Performance analysis of general tracking algorithms.
*IEEE Trans. Automatic Control*, 40:1388-1402, August 1995. **JP-107**-
J. Sjöberg, Q. Zhang, L. Ljung, A. Benveniste, B. Delyon, P.-Y. Glorennec,
H. Hjalmarsson, and A. Judisky.
Nonlinear black-box modeling in system identification: a unified
overview.
*Automatica*, 31:1691-1724, December 1995. **JP-108**-
A. Juditsky, H. Hjalmarsson, A. Benveniste, B. Delyon, L. Ljung, J. Sjöberg,
and Q. Zhang.
Nonlinear black-box models in system identification: Mathematical
foundations.
*Automatica*, 31:1725-1750, December 1995. **JP-109**-
J. Sjöberg and L. Ljung.
Overtraining regularization and searching for minimum with
application to neural nets.
*Int. J. Control*, 62(6):1391-1407, Dec 1995. **JP-110**-
L. Ljung.
Building models from frequency domain data.
In K.J. Åström, G.C.Goodwin, and P.R Kumar, editors,
*Adaptive Control, Filtering and Signal Processing*, volume 74 of*The IMA volumes in Mathematics and its Applications*, pp 229-240. Springer-Verlag, New York, 1995. **JP-111**-
L. Ljung, J. Sjöberg, and H. Hjalmarsson.
On neural network model structures in system identification.
In S. Bittanti, editor,
*Proc. from the NATO Advanced Summer Institute "From Identification to Lear ning"*, pp 162-195. Springer Verlag, 1995. **JP-112**-
P. Lindskog and L. Ljung.
Tools for semiphysical modelling.
*Int. J. of Adaptive Control and Signal Processing*, 9(6):509-523, 1995. **JP-113**-
L. Ljung and T. McKelvey.
Subspace identification from closed loop data.
*Signal Processing*, 52:209-215, 1996. **JP-114**-
T. McKelvey, H. Akçay, and L. Ljung.
Subspace-based identification of infinite-dimensional multivariable
systems from frequency-response data.
*Automatica*, 32(6):885-902, June 1996. **JP-115**-
T. McKelvey, H. Akçay, and L. Ljung.
Subspace-based multivariable system identification from frequency
response data.
*IEEE Trans. on Automatic Control*, 41(7):960-979, July 1996. **JP-115**-
H. Akçay, H. Hjalmarsson and and L. Ljung.
On the choice of norms in system identification.
*IEEE Trans. on Automatic Control*, 41(9):1367-1372, Sep 1996. **JP-116**-
T. McKelvey, T. Abrahamsson, and L. Ljung.
Vibration data analysis for a commercial aircraft.
*Automatica*, 32(12):1689-1700, 1996. **JP-117**-
S. S. Niu, L. Ljung, and Å. Björk.
Decomposition methods for solving least-squares parameter estimation.
*IEEE Trans. Signal Processing*, 44(11):2847, 1996. **JP-118**-
L. Ljung and L. Guo.
Classical model validation for control design purposes.
*Mathematical Modelling of Systems*, 3(1):27-42, January 1997. **JP-119**-
L. Ljung and L. Guo.
The role of model validation for assessing the size of the unmodeled
dynamics.
*IEEE Trans. Autom. Control*, AC-42 (9):1230-1239, 1997. **JP-120**-
L. Guo, L. Ljung, and G.J. Wang.
Necessary and sufficient conditions for stability of LMS.
*IEEE Trans. Autom. Control*, AC-42 (6):761-770, 1997. **JP-121**-
F. Gustafsson, S. Gunnarsson, and L. Ljung.
Shaping frequency-dependent time resolution when estimating spectral
properties with parametric methods.
*IEEE Trans. on Signal Processing*, 45(4):1025-1035, 1997. **JP-122**-
M. Holmberg, F. Gustafsson, E.G. Hormsten, F. Winquist,
L.E. Nilsson, L. Ljung and I. Lundstrom..
Bacteria classification based on feature extraction from sensor data.
*Biotechnology Techniques*, 12(4):319-324, Apr 1998. **JP-123**-
L. Ljung and U. Forssell.
A alternative motivation for the indirect approach to closed loop
identification.
*IEEE Trans. Automatic Control*, AC-44(11):2206-2209, Nov 1999. **JP-124**-
U. Forssell and L. Ljung.
Identification of unstable systems using output error and Box-Jenkins
model structures.
*IEEE Trans. Automatic Control*, AC-45(1):137-141, Jan 2000. **JP-125**-
U. Forssell and L. Ljung.
Some results on optimal experiment design
*Automatica*, 36(5): 749-756, May 2000. **JP-126**-
P. Lindskog and L. Ljung.
Ensuring monotonic gain characteristic in estimated models by fuzzy
model structures.
*Automatica*, 36(2): 311-317, Feb 2000. **JP-127**-
L. Ljung.
Identification for Control - What is there to learn?
*Lecture Notes Conrol and Information*, 241: 207-225, 1999. **JP-128**-
L. Ljung.
Comments on model validation as set membership identification.
*Lecture Notes Conrol and Information*, 245: 7-16, 1999. **JP-129**-
N. Bergman and L. Ljung and F. Gustafsson.
Terrain navigation using Bayesian statistics.
*IEEE Control Systems Magazine*, 19(3):33-40, Jun 1999. **JP-130**-
U. Forssell and L. Ljung.
Closed-loop identification revisited.
*Automatica*, 35(7): 1215-1241, Jul 1999. **JP-131**-
L. Ljung.
System Identification.
In
*Wiley Encyclopedia of Electrical and Electronics Engineering (J. G. Webster, Ed)*, Vol 21: pages 263-282, 1999. **JP-132**- L. Xie and Lennart Ljung.

Asymptotic variance expressions for estimated frequency functions.*IEEE Trans. Automatic Control*, AC-46: pages 1887 - 1899, Dec 2001. **JP-133**- Dietmar Bauer and Lennart Ljung.

Some facts about the choice of the weighting matrices in Larimore type of subspace algoithms.*Automatica*Vol 38, No 5, pp 763-774, May 2002. **JP-134**- Lennart Ljung.

Estimating linear time invariant models of non-linear time-varying systems.*European Journal of Control*, 7(2-3):203-219, Sept 2001.

Semi-plenary presentation at the European Control Conference, Sept 2001. **JP-135**- M. Gevers, Lennart Ljung, and P Van den Hof.

Asymptotic variance expressions for closed-loop identification.*Automatica*, 37(5):781-786, May 2001. **JP-136**- Lennart Ljung.

Recursive least-squares and accelerated convergence in stochastic approximation schemes.*Int. J. Adaptive Control and Signal Processing*, 15(2):169-178, Mar 2001. **JP-137**- A. S. Poznyak and Lennart Ljung.

On-line identification and adaptive trajectory tracking for nonlinear stochastic continuous time systems using differential neural networks.*Automatica*, 37(8):1257-1268, Aug 2001. **JP-138**- Wolfgang Reinelt, A. Garulli, and Lennart Ljung.

Comparing different approaches to model error modeling in robust identification.*Automatica*,Vol 38, No 5, pp 787-803, May 2002.

**JP-139**- Fredrik Tjärnström and Lennart Ljung.

Estimating the variance in case of undermodeling using bootstrap.*IEEE Trans. Automatic Control*, Vol AC-47,No 2, pp 395-398, Feb 2002. **JP-140**- Urban Forssell and Lennart Ljung.

A projection method for closed-loop identification.*IEEE Transactions on Automatic Control*, AC-45(11):2101 - 2106, Nov 2000.

**JP-141**- Anders Stenman, Fredrik Gustafsson, D.E. Rivera, Lennart Ljung, and Tomas
McKelvey.

On adaptive smoothing of empirical transfer function estimates.*Control Engineering Practice*, 8:1309-1315, Nov 2000. **JP-142**- Lennart Ljung.

Prediction Error Methods*Circuits, Systems and Signal Processing*, Vol 21, No 1, pp 11 - 21, Jan 2002. **JP-143**- Lennart Ljung.

Recursive Identification Algorithms*Circuits, Systems and Signal Processing*, Vol 21, No 1, pp 51 - 68, Jan 2002. **JP-144**- A.V. Nazin and Lennart Ljung.

Asymptotically optimal smoothing of averaged LMS estimates for regression parameter tracking.*Automatica*, 38(9):1287–1293, August 2002. **JP-145**- V. Verdult, Lennart Ljung, and M. Verhaegen.

Identification of composite local linear state space models using a projected gradient search.*Int. Journal Control*, 75(16/17):1385–1398, 2002. **JP-146**- Fredrik Tjärnström and Lennart Ljung.

L-2 model reduction and variance reduction.*Automatica*, 38(9):1517–1530, September 2002. **JP-147**- Wolfgang Reinelt and Lennart Ljung.

Robust control of identified models with mixed parametric and non-parametric uncertainties.*European**Journal of Control*, 9:351–358, October 2003. **JP-148**- Fredrik Tjärnström and Lennart Ljung.

Variance properties of a two-step arx estimation procedure.*European Journal of Control*, 9:400 –408, November 2003. **JP-149**- Lennart Ljung.

Linear system identification as curve fitting. In*New**Directions in Mathematical Systems Theory and Optimization, Spinger**Lecture Notes In Control and Information*, volume 286, pages 203 – 215. Springer Verlag, December 2003. **JP-150**- L. L. Xie and Lennart Ljung.

Variance expressions for spectra estimated using auto-regression.*Journal**of Econometrics*, 118(1-2):247–256, January 2004. **JP-151**- Jacob Roll, A. Bemporad, and Lennart Ljung.

Identification of piecewise affine systems via mixed-integer programming.*Automatica*, 40(1):37–50, January 2004. **JP-152**- Torkel Glad, Anders Helmersson, and Lennart Ljung.

Robustness gurantees for linear control designs with an estimated nonlinear model error model.*International Journal of Robust and Nonlinear Control*, 14:959 – 970, August 2004. **JP-153**- Lennart Ljung.

Practical issues of system identification.*UNESCO**encyclopedia EOLSS: Encyclopedia of Life Support Systems*, June 2004. **JP-154**- Ingela Lind and Lennart Ljung.

Regressor selection with the analysis of variance method.*Automatica*, 41(4):693–700, April 2005. **JP-155**- Martin Enqvist and Lennart Ljung.

Linear approximations of nonlinear FIR systems for separable input processes.*Automatica*, 41(3):459–473, March 2005. **JP-156**- S. J. Qin, W. Lin, and Lennart Ljung.

A novel subspace identification approach with enforced causal models.*Automatica*, 41 (12):2043 – 2053, December 2005. **JP-157**- Jacob Roll, A. Nazin, and Lennart Ljung.

Non-linear system identification via direct weight optimization.*Automatica*, 41(3):475–490, March 2005. **JP-158**- Lennart Ljung.

Frequency domain versus time domain methods in system identification – revisited.*Lecture Notes in Control and Information**Sciences*, 329:277 – 291, April 2006. **JP-159**- A. Fujimori and Lennart Ljung.

Model identification of linear parameter varying aircraft systems.*Proc. Inst. Mechanical Engineers, Part**G Journal of Aerospace Engineering*, 220(G4):337–346, August 2006. **JP-160**- A. Fujimori and Lennart Ljung.

Parameter estimation of polytopic models for a linear parameter varying aircraft system.*Transactions of**the Japan Society for Aeronautical and Space Sciences*, 49 (165):129–136, November 2006. **JP-161**- Markus Gerdin, Thomas Schön, Torkel Glad, Fredrik Gustafsson,
and Lennart Ljung.

On parameter and state estimation for linear differential-algebraic equations.*Automatica*, 43:416–425, March 2007. **JP-162**- Markus Gerdin, Torkel Glad, and Lennart Ljung.

Global identifiability of complex models, constructed from simple submodels.*Lecture Notes in**Control and Information Sciences*, September 2007. **JP-163**- Ingela Lind and Lennart Ljung.

Regressor and structure selection in NARX models using a structured anova approach.*Automatica*, 44(2):383–395, February 2008. **JP-164**- Anna Hagenblad, Lennart Ljung, and A. Wills.

Maximum likelihood identification of Wiener models.*Automatica*, 44(11):2697 – 2705, November 2008. **JP-165**- X. L. Hu, Thomas Schön, and Lennart Ljung.

A basic convergence result for particle filtering.*IEEE Transactions on Signal Processing*, 56(4):1337–1348, April 2008. **JP-166**- Jonas Gillberg and Lennart Ljung.

Frequency domain identification of continuous time ARMA models from sampled data.*Automatica*, 45(6):1371–1378, June 2009. **JP-167**- J. Wang, Q. Zhang, and Lennart Ljung.

Revisiting hammerstein system identification through the two-stage algorithm for bilinear parameter estimation.*Automatica*, 45(11):2627–2633, November 2009. **JP-168**- Svante Björklund and Lennart Ljung.

An improved phase method for time-delay estimation.*Automatica*, 45(10):2467–2470, October 2009. **JP-169**- Jonas Gillberg and Lennart Ljung.

Frequency-domain identification of continuous-time output error models: Part I - uniformly sampled data and frequency-function approximation.*Automatica*, 46(1):1–10, January 2010. **JP-170**- Jonas Gillberg and Lennart Ljung.

Frequency-domain identification of continuous-time output error models: Part II - non-uniformly sampled data and b-spline output approximation.*Automatica*, 46(1):11–18, January 2010. **JP-171**- Lennart Ljung and A. Wills.

Issues in sampling and estimating continuous-time models with stochastic disturbances.*Automatica*, 46:925–931, March 2010. **JP-172**- Lennart Ljung.

Perspectives on system identification.*Annual Reviews**in Control*, 34(1):1–12, March 2010. **JP-173**- Henrik Ohlsson, Lennart Ljung, and S. Boyd.

Segmentation of ARX-models using sum-of-norms regularization.*Automatica*, 46:1107 – 1111, April 2010. **JP-174**- Henrik Ohlsson and Lennart Ljung.

Semi-supervised regression and system identification. In B. Wahlberg X. Hu, U. Jonsson and B.Ghosh, editors,*Three Decades of Progress in Systems and Control*. Springer Verlag, January 2010. **JP-175**- A. Wills and Lennart Ljung.

Wiener system identification using the maximum likelihood method. In F. Giri and E. W. Bai, editors,*Block-Oriented Nonlinear System Identification*, number Lecture Notes in Control and Information Science no 404. Springer, September 2010. **JP-176**- Tianshi Chen, Thomas Schön, Henrik Ohlsson, and Lennart Ljung.
Decentralized particle filter with arbitrary state decomposition.
*IEEE**Transactions on Signal Processing*, 59(2):465–478, February 2011. **JP-177**- Xiao-Li Hu, Thomas Schön, and Lennart Ljung.

A general convergence result for particle filtering.*IEEE Transactions on Signal Processing*, 59(7):3424–3429, July 2011. **JP-178**- Christian Lyzell, Torkel Glad, Martin Enqvist, and Lennart Ljung.

Difference algebra and system identification.*Automatica*, 47(9): 1896-1904, September 2011. **JP-179**- Lennart Ljung, H. Hjalmarsson, and Henrik Ohlsson.

Four encounters with system identification.*European Journal of Control*, 5-6:449–471, December 2011. **JP-180**- Tianshi Chen, Henrik Ohlsson, and Lennart Ljung.

On the estimation of transfer functions, regulariztions amd Gaussian processes - Revisited.*Automatica*, 48(8);1525-1535, August 2012. **JP-181**- Henrik Ohlsson, Fredrik Gustafsson, Lennart Ljung, and S Boyd.

Smoothed state estimated under abrupt changes using sum-of-norms regularization.*Automatica*, 484):595-605, March 2012. **JP-182**- Henrik Ohlsson and Lennart Ljung. Weight determination by manifold
regularization.

In R. Johansson and A. Rantzer, editors,*Distributed**Decision Making and Control, Lecture Notes in Control and Information**Sciences LNCIS 417, ISBN 978-1-4471-2264-7 (421 pp.)*, chapter 9, pages 195–214. Springer Verlag,, London, January 2012.## Conference Papers

**CP-01**-
S. Lindahl and L. Ljung: Estimation of power generator dynamics from normal operating data.
*Proc. 3rd IFAC Symposium on Identification*, The Hague, pp-2, pp 367-374, June 1973. **CP-02**-
L. Ljung and J Casti: Reduction of the operator Riccati
equation.
*Proc. Int. Symp. on Control Theory, Numerical Methods and Computer Systems Modelling*. INRIA, Paris . Lecture notes in economics and mathematical systems, No 107, Springer Verlag 1975, pp 384-396, June 1974. **CP-03**-
L. Ljung: Convergence of recursive, stochastic algorithms.
*Proc. IFAC Symposium on Stochastic Control Theory*, Budapest, pp 431-437, September 1974. **CP-04**-
L. Ljung and B. Wittenmark: Analysis of a class of adaptive regulators:
*Proc. IFAC Symposium on Stochastic Control Theory*, Budapest, pp 431-437, September 1974. **CP-05**-
K. Mårtensson and L. Ljung: Optimal control of the sulfite cooking process.
*Proc. IFAC Symposium on Optimization Techniques*, Varna, Bulgaria, October 1974. **CP-06**-
L. Ljung: On consistency and
identifiability.
*Proc. Int. Symp. on Stochastic Systems*, Lexington, Ky. (North Holland) ( =JP-15), June 1975. **CP-07**-
T. Kailath and L. Ljung: A scattering theory framework for fast least- squares algorithms.
*Proc. 4th Int. Symposium on Multivariate Analysis*, Dayton, Ohio, June 1975. In P R Krishnaiah (ed) Multivariate analysis- IV, North-Holland Publishing Co, pp 387-406, 1977. **CP-08**-
J. Rissanen and L. Ljung: Estimation of optimum structures and
parameters for linear systems.
*Proc. Symposium Advanced School of Mathematical System Theory*. Udine, Italy, June 1975, Lecture Notes in Economics and Mathematical Systems, Vol 131, Springer Verlag, pp 75-91, 1976. **CP-09**-
K. J. Åström, U. Borisson, L. Ljung and
B. Wittenmark: Theory and applications of adaptive
regulators based on recursive parameter
estimation.
*Proc. 6th IFAC Congres*, Boston, paper 50.1, August 1975. **CP-10**-
T. Söderström, L. Ljung and I Gustavsson: On the accuracy problem in identification.
*Proc. 6th IFAC Congress*, paper 18.1, Boston, August 1975. **CP-11**-
L. Ljung, T. Kailath and B. Friedlander: Scattering theory and
linear least squares estimation, Part I: Continuous time
problems.
*Proc. 1975 IEEE Conference on Decision and Control*, Houston, Tex., paper, WA 4-2, pp 57-58, November 1975. **CP-12**-
B. Friedlander, T. Kailath and L. Ljung: Scattering theory and
linear least squares estimation, Part II: Discrete time
problems.
*Proc. 1975 IEEE Conference on Decision and Control*, Houston, Tex. , paper WA 4-2, pp 57-58, November 1975. **CP-13**-
T. Kailath and L. Ljung: A new approach to the solution of linear integral equations with nondisplacement kernels.
*The SIAM-SIGNUM 1975 Fall Meeting*, San Francisco, CA. December 1975, (Abstract only). SIAM Review, Vol 18, No 4, p 811, October 1976. **CP-14**-
T. Kailath and L. Ljung: Asymptotic detection in finite families.
*International Symposium on Information Theory*, Ronneby, Sweden, June 1976. (Abstract only). **CP-15**-
M. Morf and L. Ljung: Fast algorithms for recursive identification:
*International Symposium on Information Theory*, Ronneby, Sweden, June 1976 (Abstract only). **CP-16**-
P.E. Caines and L. Ljung: Asymptotic normality and accuracy of
prediction error estimators.
*Proc. 1976 JACC*, Purdue Univ. Indiana, July 1976. **CP-17**-
I. Gustavsson, L. Ljung and T. Söderström: Identification of processes in closed loop-identifiability and accuracy aspects. Proc.
*4th IFAC Symposium on Identification and System Parameter Estimation*. Tbilisi, USSR, paper S-3 (Invited survey), pp 23-61, September 1976. **CP-18**-
L. Ljung and J. Rissanen: on canonical forms, parameter identifiability and the concept of complexity.
*Proc. 4th IFAC Symposium on Identification and System Parameter Estimation*, Tbilisi, USSR, paper 19.1, pp 380-388, September 1976. **CP-19**-
L. Ljung and B. Wittenmark: On a stabilizing property of adaptive regulators.
*Proc. 4th IFAC Symposium on Identification and System Parameter Estimation*, Tbilisi, USSR, paper 19.1, pp 380-388, September 1976. **CP-20**-
T. Söderström, L. Ljung and I. Gustavsson: Analysis of some on-line identification methods,
*Proc. 4th IFAC Symposium on Identification and System Parameter Estimation*, Tbilisi, USSR, paper 14.7 (not included in preprints), September, 1976. **CP-21**-
T. Kailath, l. Ljung and M. Morf: Recursive input-output and
state space solutions for continuous time linear
estimation problems.
*Proc. 1976 IEEE Conference on Decision and Control*, Clearwater, FL, paper WE 5-2, pp 182A-182G, December 1976. **CP-22**-
L. Ljung and T. Kailath: Formulas for efficient change of initial
conditions in linear least squares estimation.
*Proc. 1976, IEEE Conference on Decision and Control*, Clearwater, FL, paper TA 5-6, pp 640-644, December 1976. **CP-23**-
P.E. Caines and L. Ljung: Prediction error estimators: Asymptotic normality and accuracy.
*Proc. 1976 IEEE Conference on Decision and Control*, Clearwater, FL, paper TA 5-7, pp 652-658, December 1976. **CP-24**-
B. Friedlander, M. Morf, T. Kailath and L. Ljung: Levinson and
Chandrasekhar-type equations for a general discrete-time linear
estimation problem.
*Proc. 1976 IEEE Conference on Decision and Control*, Clearwater, FL. , paper TP 6-8, pp 910-915, December 1976. **CP-25**-
M. Morf, L. Ljung and T. Kailath: Fast algorithms for recursive identification.
*Proc. 1976 IEEE Conference on Decision and Control*, Clearwater, FL, paper TP 7-1, pp 916-921, December 1976. **CP-26**-
L. Ljung: Determination of the internal structure of multivariate time series from data.
*Symposium on Mathematical and Numerical Analysis of Inverse and Ill-posed Problems*, Linköping University, Sweden (Abstract only), January 1977. **CP-27**-
L. Ljung: Convergence analysis of recursive, stochastic algorithms. Analyse et Control de Systhmes, Siminairs IRIA, pp 127-132, 1977.
**CP-28**-
L. Ljung: Basic ideas in recursive identification.
*Journees d'Automatique*, IRISA, Rennes, France. Published in IRISA Publication Interne no 92, pp 36-49, September 1977. **CP-29**-
L. Ljung: Adaptive control based on recursive identification. Siminaire d'Automatique de l'Universithde Rennes, 1977, pp 50-54,
*Journees d'Automatique de Rennes*, IRISA, Rennes, France. Published in IRISA Publication Interne no 92, September 1977. **CP-30**-
D.D. Falconer and L. Ljung: Application of fast Kalman
estimation to adaptive equalization.
*1977 IEEE International Symposium on Information Theory*, Cornell University, Ithaca, N.Y. pp 38-39. (Abstract only), 1977. **CP-31**-
L. Ljung and A.J.M. van Overbeek: Validation of approximate models obtained from prediction error identification .
*7th IFAC Congress, Helsinki*, paper 45 A.3, pp 1899-1906, June 1978. **CP-32**-
L. Ljung and I. D. Landau: Model reference adaptive systems and self- tuning regulators - some connections.
*7th IFAC Congress*, Helsinki, paper 46 A.2 pp 1973-1980, June 1978. **CP-33**-
L. Ljung: Asymptotic theory of prediction error estimators for dynamical systems.
*1st AFCET/SMF Meeting*, Palsiseau, France, pp 155-166, September 1978. **CP-34**-
L. Ljung: Some basic ideas in recursive identification.
*Conference on the Analysis and Optimization of Stochastic System*. Oxford, England, September 1978. **CP-35**-
L. Ljung: Prediction error identification methods.
*French- Swedish Colloquium on Applied Mathematics*, Stockholm, p 27 (Abstract only), October 1978. **CP-36**-
L. Ljung and P.E. Caines: Asymptotic normality of prediction error estimators for approximate system models.
*Proceedings 1978 IEEE Conference on Decision and Control*, San Diego, paper no FA 6-2, January 1979. **CP-37**-
B. Levy, T. Kailath, M. Morf and L. Ljung: Fast timeinvariant implementations for linear least squares smoothing filters.
*Proceedings 1978 IEEE Conference on Decision and Control*, San Diego, Paper no FP 6-1, January 1979. **CP-38**-
L. Ljung: Asymptotic theory of prediction error estimation methods.
*Int. Time Series Meeting (ITSM) 1979*, Nottingham, March 1979. Published in Time Series (O D Anderson, Ed), North-Holland, pp 157-166, 1980. **CP-39**-
L. Ljung: Fast algorithms for recursive estimation and identification.
*International Conference on Numerical Techniques for Stochastic Systems*, Gargnano, Italy, September 1979. Published in Numerical Techniques for Stochastic Systems (F. Archetti, M Cugiani, Eds), North Holland, pp 43-48, 1980. **CP-40**-
A J M van Overbeek and L Ljung: On-line structure selection for multivariable and system parameter estimation,
*Fifth IFAC Symposium on Identification and System Parameter Estimatio*n, Darmstadt, paper M4:1, pp 387-396, September 1979. **CP-41**-
L. Ljung: Convergence of recursive estimators,
*Fifth IFAC Symposium on Identification and System Parameter Estimation*, Darmstadt, Survey paper S8, pp 131-144, September 1979. **CP-42**-
L. Ljung and K. Glover: Frequency domain versus time domain methods in system identification - A brief discussion,
*Fifth IFAC Symposium on Identification and System Parameter Estimation*, Darmstadt, discussion paper, pp 1309-1322, September 1979. **CP-43**-
L. Ljung: Recursive identification. In Stochastic Systems: The Mathematics of Filtering and Identification and Applications. (Eds M Hazewinkel and J C Willems).
*Proceedings of the NATO Advance Study Institute*, Les Arcs, Savioe, France, pp 247-282, June-July 1980. **CP-44**-
L. Ljung: The ODE approach to the analysis of adaptive control systems - possibilities and limitations.
*Proceedings of the Joint Automatic Control Conference*, San Francisco, paper WA 2-C, August 13-15, 1980. **CP-45**-
L. Ljung: Asymptotic gain and search direction for recursive identification algorithms.
*Proc. of the IEEE Conf on Decision and Control*, Albuquerque, New Mexico, pp 981-985, December 10-12, 1980. **CP-46**-
D M Wiberg and L Ljung: Gaussian-Optimal on line parameter estimation,
*Proc. of the IEEE Conf on Decision and Contro*l, Albuquerque, New Mexico, pp 681-683, December 10-12 1980. **CP-47**-
L. Ljung: On the positive-real condition in adaptive control,
*Proc. of the International Workshop in Applications of Adaptive Control*, Yale University, Conn. May 1981. **CP-48**-
L. Ljung and E Trulsson: Adaptive control based on explicit criterion minimization.
*Proc. of the 8th IFAC World Congress*, Japan, Vol VII pp 1-6, paper 31.1, August 1981. **CP-49**-
L. Ljung: system identification.
*Proc. of the Arab School on Science and Technolog*y, Bloudan, Syria, September 1981. **CP-50**-
L. Ljung: The system identification problem.,
*4th Aacener Kolloquim, RWTH*, Aachen, West Germany, pp 229-232 (Abstract only), 1981. **CP-51**-
B Friedlander, L. Ljung and M. Morf: Lattice implementation of the recursive maximum likelihood algorithm.
*Proc. 20th IEEE Conf on Decision and Contro*l, San Diego, CA, December 1981. **CP-52**-
P Andersson and L. Ljung: A test case for adaptive control - Car steering,
*Proc. of the IFAC Symposium on Theory and Applications of Digital Contro*l, New Delhi, India, pp 22:1-5, January 1982. **CP-53**-
L. Ljung: An overview of the system identification
problem.
*Proc. of the IIISC-ISRO Seminar on Large Scale Systems and Signal Processing*, Bangalore, India. (Abstract only), January 1982. **CP-54**-
L. Ljung: Recursive identification techniques.
*Proc. ICASSP-82, Paris*, France, pp 627-630, May 1982. **CP-55**-
L. Ljung: Recursive identification techniques.
*Proc. Conference on Mathematical learning models-theory and algorithms*, Bad Honnef, BRD, May 1982. **CP-56**-
L. Ljung: Systems, Models and System Identification.
*Proc. Int. Symp on Circuits and Systems, ISCAS*, Rome, Italy, pp 907-910, May 1982. **CP-57**-
L. Ljung: An overview of the system identification problem; Introduction.
*Proc. of the IFAC Symp on Identification and System Parameter Estimation*, Washington, D C p 1, June 1982. **CP-58**-
L. Ljung: Identification methods.
*Proc. of the 6th IFAC Symp on Identification and System Parameter Estimation*, Washington, D C, p.1 June 1982. **CP-59**-
L. Ljung: Model Validation,
*Proc. of the 6th IFAC Symp. on Identification and System Parameter Estimatio*n, Washington, D C, pp 26-28, June 1982. **CP-60**-
L. Ljung: Recursive identification methods for off-line identification problems,
*Proc. of the 6th IFAC Symp on Identification and System Parameter Estimation*, Washington, D C, pp 475-480, June 1982. **CP-61**-
E. Trulsson and L. Ljung: Direct minimization methods for adaptive control of non-minimum phase system.
*Proc. of the 6th IFAC Symp on Identification and System Parameter Estimation*, Washington, D C, pp 549-553, June 1982. **CP-62**-
E. Trulsson and L. Ljung: Adaptive minimization of control performance criteria.
*prep Colloque national, Divelopment et utilisation d'outils et Modhles Mathimatiques en Automatique, Analyse des Systhms et Traiment du Signal*, p 277, Bell-Ile, France, September 1982. **CP-63**-
Z. D. Yuan end L. Ljung: Optimal input design by frequency domain criteria.
*Proc. IEEE Conference on Decision and Control*, pp 1005- 1006, Orlando, FL, December 1982. **CP-64**-
C.R. Johnson and L. Ljung: On possible convergence points for reduced order indirect adaptive pole placement.
*Proc. 17th Conf on Information Sciences and Systems (CISS)*, Baltimore, MD, pp 108-113, March 1983. **CP-65**-
T. Söderström and L. Ljung: User choices for recursive identification methods.
*Proc. IAESTED Conf on Applied Control and Identification, ACI '83*, Lyngby, Denmark, paper 24-14, June 1983. **CP-66**-
L. Ljung: Recursive identification of stochastic dynamical systems,
*Bulletin of the international statistical institute, Proc. of the 44th Session*, Madrid, Spain, pp 1284-1297, September 1983. **CP-67**-
L. Ljung: Advanced process control.
*Symposium on pulp and paper mill-wide control*, ASEA, Västerås, Sweden, November 1983. **CP-68**-
L. Ljung and Z.D. Yuan: Properties of non-parametric
time-domain methods for estimating transfer
functions.
*22nd IEEE Conf on Decision and Control*, San Antonio, TX, pp 323-324, December 1983. **CP-69**-
L. Ljung: Performance evaluation of models,identified by the least squares method.
*Proc. 6th Int. Conf on Analysis and Optimization of Systems*, Nice, June 1984, Lecture Notes in Control and Information Systems (A. Bensoussan, J.L. Lions, Eds) Springer, pp 421-435, 1984. **CP-70**-
S. Ljung and L. Ljung: Error propagation properties of recursive least squares adaptation algorithms.
*Proc. 9th IFAC World Congress*, Budapest, pp X-70-74, July 1984. **CP-71**-
T. Glad and L. Ljung: Velocity estimation from irregular, noisy position measurements.
*Proc. 9th IFAC World Congress, Budapest*, pp VII-275-279, July 1984. **CP-72**-
L. Ljung: Bias distribution in transfer function estimation,
*NSF-STU Workshop on Adaptive Control*, Lund, July 1984 (Abstract only). **CP-73**-
L. Ljung: Modern system identification,
*URSI XXIst General Assembly, paper B4-2*, Florence, September 1984 (Abstract only). **CP-74**-
L. Ljung: Frequency domain properties of identified transfer functions,
*4th IMA Int. Conf on Control Theory*, Cambridge, UK, September 1984. **CP-75**-
L. Ljung: Asymptotic variance expressions for identified black-box transfer function models.
*23rd IEEE Conf on Decision and Control*, Las Vegas, pp 951-958, December 1984. **CP-76**-
B. Wahlberg and L. Ljung: Design variables for bias distribution in transfer function estimation.
*23rd IEEE Conf on Decision and Control*, Las Vegas, pp 335-341, December 1984. **CP-77**-
L. Ljung: Error propagation in adaptation algorithms with poorly exciting signals.
*Workshop on Quantization and Adaptation*, Nice, France, May 1985. **CP-78**-
F. Fnaiech and L. Ljung: On the identification and adaptive control of bilinear systems.
*Proc. JTEA 85, 6eme Journies Tunisiennes d ' Electrotechnique et d'Automatique*, paper 19 Tunis, May 1985. **CP-79**-
L. Ljung: On the estimation of transfer functions.
*Proc. 7th IFAC Symp on Identification and Systems Parameter Estimatio*n, York, pp 1653-1658, July 1985. **CP-80**-
L. Ljung: Asymptotic variance of transfer function estimates obtained by the instrumental variable method.
*Proc. 7th IFAC Symp on identification and System Parameter Estimation*, York, pp 1341-1344, July 1985. **CP-81**-
M. Gevers and L. Ljung: Benefits of feedback in experiment design.
*Proc. 7th IFAC Symp on Identification and System Parameter Estimation*,York, 1021-1024, July 1985. **CP-82**-
E. Trulsson and L. Ljung: On Self-robustification of adaptive control performance criteria.
*Proc. 7th IFAC Symp on Identification and System Parameter Estimation*, York, July 1985. **CP-83**-
L. Ljung: Recursive techniques for identifying dynamic systems. In on- line process simulation techniques in industrial control (E.J. Kompass and T J Williams, eds).
*Proc. of the 11th Annual Advanced Control Conference*, Purdue University, September 1985. **CP-84**-
L. Ljung: System Identification: An expository
survey.
*Proc. 23rd Annual Allerton Conference on Communication, control and Computing*. Allerton, IL, pp 204-216, October 1985. **CP-85**-
E. Trulsson and L. Ljung: Stability in adaptive control by persistently exciting regulators.
*Proc. 24th IEEE Conf on Decision and Control*. Ft Lauderdale, FL, pp 484-491, December 1985. **CP-86**-
L. Ljung: A non-probabilistic framework for signal spectra.
*Proc. 24th IEEE Conf on Decision and Control*. Ft Lauderdale, FL, pp 484-491, December 1985. **CP-87**-
L. Ljung: Building models for a specified purpose using system identification.
*Proc. IFAC Symp on Simulation of Control Systems*, Vienna, Austria, pp 3-7, September 1986. **CP-88**-
L. Ljung: System identification, model simplification and the
design objective,
*Proc. 25th CDC*, Athens, Greece, December 10-12, 1986. **CP-89**-
L. Ljung: Design issues in system identification.
*Proc. NATO Advanced Research Workshop om Modelling, Robustness and Sensitivity Reduction in Control Systems*, Groningen, The Netherlands, 1987. **CP-90**-
L. Ljung: Identification theory and single realization
behavior,
*Proc. 25th CDC*, Athens, Greece, December 10-12, 1986. **CP-91**-
L. Ljung: Recursive techniques for identifying dynamic
systems.
*Prep. Workshop on Automatic Control and Signal Processing, EMI*, Rabat, Morocco, 1987. **CP-92**-
L. Ljung: Identification. An expository
survey.
*Prep. Workshop on Automatic control and Signal Processing, EMI,*, Rabat, Morocco, 1987. **CP-93**-
L. Ljung: Signals, noises and model errors.
*Proc. Conference on Mathematical Theory of Networks and Systems. (MTNS-87)*, Phoenix, Arizona, 1987. **CP-94**-
L. Ljung: On the estimation of transfer functions.
*Proc. 10th IFAC World Congress on Automatic Control*, Munich, Germany, July 1987. **CP-95**-
S.K. Mitter, J.M. Moura and L. Ljung: Optimal recursive maximum likelihood estimation.
*Proc. 10th IFAC World Congress on Automatic Contro*l, Munich, Germany, Vol 9, pp 247-248, July 1987. **CP-96**-
L. Ljung: Adaptation and tracking in identification.
*Proc. AFSR Meeting on Signal Processing*, Sophia-Antipolis, France, October 15, 1987. **CP-97**-
L. Ljung: System Identification - a status report.
*Benelux Meeting on Systems and Control '88*, Heijen, Holland, March 3, 1988. (abstract only). **CP-98**-
L. Ljung: Adaptation and tracking in dynamical systems.
*Benelux Meeting on Systems and Control '88, Heijen*, Holland, March 3, 1988. (abstract only). **CP-99**-
L. Ljung: Modelling and identification for simulation.
*IMACS'88 World Congress*, Paris, pp 171-178, July 17-23, 1988. **CP-100**-
L. Ljung: Adaptation and tracking in system identification.
*8th IFAC Symposium on Identification and System Parameter Estimation*, Beijing (Plenary Paper), pp 1-10, August, 1988. **CP-101**-
L. Ljung: System identification in a noise-free environment,
*IFAC Symposium on Adaptive Control and Adaptive Signal Processing, ICASSP'89*, Glasgow. (Plenary paper), pp 29-38, April 1989. **CP-102**-
B. Ottersten and L. Ljung: Asymptotic results for sensor array
processing.
*Proc. IFAC Symposium on Adaptive Control and Adaptive Signal Processing, ICASSP'89*, Glasgow, UK, pp 2266-2269, May 1989. **CP-103**-
S. Gunnarsson and L. Ljung: Frequency domain description of
the tracking capability and disturbance
rejection trade-off in recursive
identification.
*Proc. IFAC Symposium on Adaptive Control and Adaptive Signal Processing, ICASP'89*, Glasgow, UK, pp 2077-2080, May 1989. **CP-104**-
K. Forsman, L. Ljung, M. Millnert and A. Skeppstedt: Merging "reasoning" and filtering in a Bayesian framework - some sensitivity and optimality aspects.
*28th IEEE Conference on Decision and Control*, Tampa, Florida, pp 427-1429, December 1989. **CP-105**-
L. Ljung: An estimate of the tracking ability of adaptive algorithms.
*28th IEEE Conference and Decision and Control*, Tampa, Florida, pp 1392-1394, December 1989. **CP-106**-
P.A. Nagy and L. Ljung: An intelligent tool for system
identification.
*CACSD '89, IEEE Workshop on Computer-aided Control System Design*, Tampa, FL, pp 58-63, 1989. **CP-107**-
L. Ljung: Choices of prefilters and forgetting factors in noise-free identification.
*1989 Automatic Control Conference*. Pittsburgh, June 1989. **CP-108**-
H. Hjalmarsson and L. Ljung: How to estimate model uncertainty in the case of under-modelling.
*1990 American Control Conference*, San Diego, pp 323-324, May 1990. **CP-109**-
L. Ljung and B. Wahlberg: Influence of model order on change detection in noise-free, complex system.
*American Control Conference*, San Diego, pp 2388-2393, May 1990. **CP-110**-
S.T. Glad and L. Ljung: Parameterization of nonlinear model structures as linear regressions.
*11th IFAC Congress, Tallinn*, Estonia, Vol 8, pp 74-79, 1990. **CP-111**-
S.T. Glad and L. Ljung: Model structure identifiability and persistence of excitation,
*29th IEEE Conference on Decision and Control*, Honolulu, 1990. **CP-112**-
L. Ljung: Model accuracy in system identification.

*IFAC Symposium on Int.elligent Tuning and Adaptive Control, ITAC 91*, (Plenary Paper) Singapore, 1991. **CP-113**-
L. Ljung: An exact formula for the tracking ability of adaptive algorithms: Implications for the general case. pp 208-212, Budapest, Hungary.
*Preprints 9th IFAC/IFORS Symposium on System Identification and System Parameter Estimation*, July 1991. **CP-114**-
K. Forsman and L. Ljung: On the dead-zone in system identification. pp 1410-1414, Budapest, Hungary,
*Preprints IFAC/IFORS Symposium on System Identification and System Parameter Estimation*, July 1991. **CP-115**-
P. A. J Nagy and l. Ljung. Computer-aided model structure selection. pp 918-923 Budapest, Hungary.
*Preprints IFAC/IFORS Symposium on System Identification and System Parameter Estimation*, July 1991. **CP-116**-
L. Ljung: Identifying state-space models with Mathwork's
system identification toolbox. pp 1582-1584, Budapest,
Hungary.
*Preprints IFAC/IFORS Symposium on System Identification and System Parameter Estimation*, July 1991. **CP-117**-
L. Ljung and T. Glad: Testing global identifiability for arbitrary model parameterizations. pp 1077-1082. Budapest, Hungary.
*Preprints IFAC/IFORS Symposium on System Identification and System Parameter Estimation*, July 1991. **CP-118**-
L. Ljung and B. Wahlberg and T. Söderström: On sampling and reconstruction of continuous time stochastic systems. pp. 1174-1178, Budapest, Hungary.
*Preprints IFAC/IFORS Symposium on System Identification and System Parameter Estimation*, July 1991. **CP-129**-
P. A. J Nagy and L. Ljung: Estimating time-delays via state-space identification methods. pp 1114-1144, Budapest, Hungary.
*Preprints 9th IFAC/IFORS Symposium on System Identification and System Parameter Estimation*, July 1991. **CP-120**-
B. Wahlberg and L. Ljung: On the estimation of transfer
function error bounds,
*In Proc. European Control Conference*, pp 1378-1180, Grenoble, France, 1991. **CP-121**-
L. Ljung: Optimal and ad hoc adaptation mechanisms. Grenoble, France.
*Proc. European Control Conference*, July 1991. **CP-122**-
F. Gustafsson, J.E. Strömberg and L. Ljung: Trees as black-box model structures for dynamical systems. Grenoble, France.
*Proc. European Control Conference*, July 1991. **CP-123**-
P.A.J. Nagy and L. Ljung: System identification using bond graphs. Grenoble, France.
*Proc. European Control Conference*, July 1991. **CP-124**-
L. Ljung: A (simple) perspective on adaptation algorithms. In
*Proc. Workshop on Stochastic Theory - Adaptive Control*, Lawrence, KA, USA, September 1991. **CP-125**-
L. Ljung: A simple start-up procedure for canonical form state space identification, based on subspace approximation. Brighton, England.
*30th IEEE Conference on Decision and Control*, December 1991. **CP-126**-
B. Wahlberg, M. Viberg, B. Ottersten and L. Ljung: A statistical perspective on state-space modelling using subspace methods. Brighton, England.
*30th IEEE Conference on Decision and Control*, December 1991. **CP-127**-
B. Wahlberg, L. Ljung and H. Hjalmarsson: Model quality: The role of prior knowledge and data information. Brighton, England.
*30th CDC IEEE Conference on Decision and Control*, December 1991. **CP-128**-
L. Ljung, A. Isaksson and J. E. Strömberg: On recursive construction of trees as models of dynamical systems. Brighton, England.
*30th IEEE Conference on Decision and Control*, December 1991. **CP-129**-
J. Sjöberg and L. Ljung: Overtraining, regularization and
searching for minimum in neural networks.
*In 4th IFAC Int. Symp. on Adaptive Systems in Control and Signal Processing, ACASP/92*, pp 669-674, Grenoble, France, July 1992. **CP-130**-
P.A. J. Nagy and L. Ljung: System identification using
bond-graphs.
*In Proc. IFAC Symp. on Adaptive Systems in Control and Signal Processing*. pp 415-420, Grenoble, France, July 1992. **CP-131**-
B. Egardt, C.R. Johnson, L. Ljung and G.A. Williamson:
Adaptive system performance in the frequency domain.
*In 4th IFAC Int. Symp. on Adaptive Systems in Control and Signal Processing, ACASP/92*, pp 33-40, Grenoble, France, July 1992. **CP-132**-
L. Ljung and J. Sjöberg: A comment on ``leakage'' in
adaptive algorithms. In
*4th IFAC Int. Symp. on Adaptive Systems in Control and Signal Processing, ACASP/92*, pp 377-382, Grenoble, France, July 1992. **CP-133**-
L. Guo, L. Ljung and P. Priouret: Tracking performance analysis of
the forgetting factor RLS algorithm.
*In IEEE Conf. on Decision and Control*, Tucson, AZ, December, 1992. **CP-134**-
L. Ljung: Optimal and ad hoc adaptation mechanisms, In
*ESSSE'92*, Paris, France, September 1992. **CP-135**-
L. Ljung: Modeling of industrial systems. In J. Komorowski and
Z.W. Ras editors,
*Methodologies for Intelligent Systems*, pp 338-350, Trondheim, Norway, 7th Int. Symp. ISMIS'93, Springer Verlag, June 1993. **CP-136**-
L. Ljung and J. Sjöberg: A system identification perspective
on neural nets. In S.Y. Kung, editor.
*IEEE Workshop on Neural Networks for Signal Processing*, 445 Hoes Lane, Piscataway, NJ. IEEE Science Center, September 1992. **CP-137**-
L. Ljung, T. Glad and T. Andersson: Identifiability implies
robust identifiability, In J.W. Nieuwenhuis, C. Praggman and H.L.
Trentelman, editors,
*Proc. 2nd European Control Conference*, pp 2144-2148, Groningen, Volume 4, July 1993. **CP-138**-
J. Sjöberg, T. McKelvey and L. Ljung: On the use of
regularization in system identification. In
*Proc. 12 IFAC World Congress*, pp 381-386, Sydney, Australia, Volume 7, July 1993. **CP-139**-
M. Viberg, L. Ljung, B. Ottersten and B. Wahlberg: Performance
of subspace based state-space.
In
*Proc. 12 IFAC World Congres*s, p 369, Sydney, Australia, Volume 7, July 1993. **CP-140**-
L. Ljung: The process of identification.
In
*Proc. 12 IFAC World Congress*, IX-5, Sydney, Australia, July 1993. **CP-141**-
L. Ljung: Identifiability of systems.
*Swedish-Italian Meeting on Control*, Stockholm, September, 1992, (Abstract only). **CP-142**-
L. Ljung: Developments in System identification.
*The 1993 MATLAB Conference*, Cambridige, Mass. (Abstract only), October 1993. **CP-143**-
L. Ljung and H. Hjalmarsson: A discussion of ``unknown but
bounded'' disturbances in identification.
*Proc. 32nd IEEE Conf. on Decision and Control*, San Antonio, TX, pp 535, 1993. **CP-144**-
T. Andersson, T. Glad and L. Ljung: Identifiability implies
robust identifiability.
*Proc. 32nd IEEE Conference on Decision and Control*, San Antonio, TX, pp 567-569, 1993. **CP-145**-
L. Ljung: Information contents in identification data from
closed loop operation.
*Proc. 32nd IEEE Conference on Decision and Control*, San Antonio, TX , pp 2242-2247, 1993. **CP-146**-
L. Ljung: Some results on identifying linear systems using
frequency domain data.
*Proc. 32nd IEEE Conference on Decision and Control*, San Antonio, TX. , pp 567-569, 1993. **CP-147**-
L. Ljung: From Data to Model: A Guided Tour,
CONTROL
*'94, IEE Conference on Control*, March, 1994. **CP-148**-
L. Ljung:
Building Models From Frequency Domain Data,
*IMA Workshop on Adaptive Control and Signal Processing*, Minneapolis, Minnesota, 1994. **CP-149**-
T. Abrahamsson, T. McKelvey, and L. Ljung.
A study of some approaches to vibration data analysis.
In
*Proc. 10th IFAC Symposium on System Identification (SYSID'94)*, volume 3, pages 289-294, Copenhagen, Denmark, July 1994. **CP-150**-
H. Kaufman, S. Koch, and L. Ljung.
The EKF, RPEM and recursive maximum likelihood method in a simple
application to image restoration.
In
*Proc. 10th IFAC Symposium on System Identification (SYSID'94)*, volume 3, pages 441-446, Copenhagen, Denmark, July 1994. **CP-151**-
L. Ljung.
A graphical user interface (GUI) to the system identification
toolbox.
In
*Proc. 10th IFAC Symposium on System Identification (SYSID'94)*, volume 4, pages 29-33, Copenhagen, Denmark, July 1994. **CP-151**-
H. Hjalmarsson and L. Ljung.
A unifying view of disturbances in identification.
In
*Proc. 10th IFAC symposium on System Identification (SYSID'94)*, volume 2, pages 73-78, Copenhagen, Denmark, July 1994. **CP-153**-
T. Andersson, P. Pucar, and L. Ljung.
Identification aspects of inter-sample input behavior.
In
*Proc. 10th IFAC Symposium on System Identification (SYSID'94)*, volume 3, pages 137-142, Copenhagen, Denmark, July 1994. **CP-154**-
P. Lindskog and L. Ljung.
Tools for semi-physical modeling.
In
*Proc. of the 10th IFAC symposium on Identification (SYSID'94)*, volume 3, pages 237-242, Copenhagen, Denmark, July 1994. **CP-155**-
J. Sjöberg and L. Ljung.
Criterion minimization using estimation data and validation data.
In
*Proc. 10th IFAC Symposium on System Identification (SYSID'94)*, volume 1, pages 187-190, Copenhagen, Denmark, July 1994. **CP-156**-
J. Sjöberg, H. Hjalmarsson, and L. Ljung.
Neural networks in system identification.
In
*Proc. 10th IFAC Symposium on System Identification (SYSID'94)*, volume 2, pages 49-72, Copenhagen, Denmark, 1994. Available by anonymous ftp`130.236.24.1`. **CP-157**-
H. Akçay, H. Hjalmarsson, and L. Ljung.
On the choice of norms i system identification.
In
*Proc. 10th IFAC Symposium on System Identification (SYSID'94)*, volume 2, pages 103-108, Copenhagen, Denmark, 1994. **CP-158**-
H. Hjalmarsson and L. Ljung.
A unifying view of disturbances in identification.
In
*Proc. 10th IFAC Symposium on System Identification (SYSID'94)*, volume 2, pages 73-78, Copenhagen, Denmark, 1994. **CP-159**-
U. Zhu, P. van Overschee, B. De Moor, and L. Ljung.
Comparison of three classes of identification methods.
In
*Proc. 10th IFAC Symposium on System Identification (SYSID'94)*, volume 1, pages 1.175-1.180, Copenhagen, Denmark, 1994. **CP-160**-
L. Ljung.
Aspects on accelerated convergence in stochastic approximation
schemes.
In
*Proc. 33rd IEEE Conference on Decision and Control, Lake Buena Vista, Florida*, pages 1649-1652, December 1994. **CP-161**-
F. Gustafsson, S. Gunnarsson, and L. Ljung.
On time-frequency resolution of signal properties using parametric
techniques.
In
*Proc. 33rd IEEE Conference on Decision and Control, Lake Buena Vista, Florida*, pages 2259-2264, December 1994. **CP-162**-
L. Guo and L. Ljung.
Performance analysis of general tracking algorithms.
In
*Proc. 33rd IEEE Conference on Decision and Control, Lake Buena Vista, Florida*, pages 2851-2855, December 1994. **CP-163**-
L. Guo and L. Ljung.
The role of model validation for assessing the size of the unmodeled
dynamics.
In
*Proc. 33rd IEEE Conference on Decision and Control*, Lake Buena Vista, Florida, pages 3894-3899, December 1994. **CP-164**-
L. Ljung.
Some aspects of non-linear black-box modeling in system
identification.
In
*Communications, Computing, Control and Signal Processing: 2000*, pages 434 - 440, Stanford, CA, Kluwer Publishing Co, June 1995. **CP-165**-
L. Ljung.
Non-linear black box models in systems identification.
In
*2nd Russian Swedish Control Conference*, pages 23-27, St. Petersburg, Russia. Plenary Presentation, August 1995. **CP-166**-
L. Ljung and H. Hjalmarsson.
System identification through the eyes of model validation.
In
*Proc. Third European Control Conference*, volume 3, Rome, Italy, pp 949-954, September 1995. **CP-167**-
T. McKelvey, L. Ljung, and H. Akçay.
Identification of infinite dimensional systems from frequency
response data.
In
*Proc. Third European Control Conference*, volume 3, pages 2106-2111, Rome, Italy, September 1995. **CP-168**-
L. Ljung.
Non-linear black box modeling in system identification.
In
*International Conference on Artificial Neural Networks*, Paris, France. Plenary Presentation, October 1995. **CP-169**-
L. Ljung and L. Guo.
Estimating the total model error from standard model validation
tests.
In
*Proc. 34th IEEE Conference on Decision and Control*, New Orleans, LA, pp 1651-1656, December 1995. **CP-170**-
A. Tikku and L. Ljung.
Worst-case identification in l1 for f.i.r. linear systems.
In
*Proc. 34th IEEE Conference on Decision and Control*, New Orleans, LA, PP 2998-3003, December 1995. **CP-171**-
L. Ljung.
Hybrid and discrete systems in automatic control - some new
(Linköping) approaches.
In
*Preprints, Reglermöte'96, Luleå*. Plenary Presentation, 1996. **CP-172**-
L. Ljung.
Models in signal processing.
In
*Proc. Radiovetenskaplig Konferens*, Luleå. Plenary Presentation, June 1996. **CP-173**-
L. Ljung.
Development of system identification.
In
*Proceedings of the 13th World Congress of IFAC*, volume G, pages 141-146, San Francisco, California, July 1996. **CP-174**-
L. Ljung and L. Guo.
Estimating the total error from standard model validation tests.
In
*Proceedings of the 13th World Congress of IFAC*, volume I, pages 133-138, San Francisco, California, July 1996. **CP-175**-
L. Ljung and T. McKelvey.
A least squares interpretation of sub-space methods for system
identification.
In
*Proc. 35th IEEE Conference on Decision and Control*, pages 335-342, Kobe, Japan, December 1996. **CP-176**-
L. Ljung.
PAC-learning and asymptotic identification theory.
In
*Proc. 35th IEEE Conference on Decision and Control*, Kobe, Japan, pp 2303-2307, December 1996. **CP-177**-
A. Stenman, F. Gustafsson, and L. Ljung.
Just in time models for dynamical systems. In
*Proc. 35th IEEE Conference on Decision and Control*, Kobe, Japan, pp 1115-1120, December 1996. **CP-178**-
L. Ljung.
Non-linear black box models in system identification.
In
*Proc. IFAC Symposium on Advanced Control of Chemical Processes, ADCHEM'97*, pages 1-13, 1997. Banff, Canada. **CP-179**-
L. Ljung.
System identification.
In
*Signal Analysis and Prediction*, pages 41-47, 1997. Proceedings of the Conf. on Signal Analysis and Prediction, ECSAP-97, Prague. **CP-180**-
U. Forssell and L. Ljung.
Tracking time-varying systems: Revisiting some basic trade-offs.
In
*Proceedings of the 11th IFAC Symposium on System Identification*, volume 4, pages 1759-1764, Fukuoka, Japan, 1997. **CP-181**-
T. McKelvey and L. Ljung.
Frequency domain maximum likelihood identification.
In
*Proc. of the 11th IFAC Symposium on System Identification*, volume 4, pages 1741-1746, Fukuoka, Japan, July 1997. **CP-182**-
L. Ljung and T. McKelvey.
Interpretation of subspace methods: Consistency analysis.
In
*Proc. of the 11th IFAC Symposium on System Identification*, volume 3, pages 1125-1130, Fukuoka, Japan, July 1997. **CP-183**-
L. Ljung.
Identification in closed loop: some aspects on direct and indirect
approaches.
In
*Proc. of the 11th IFAC Symposium on System Identification*, volume 1, pages 141-147, 1997. SYSID'97, Kitakyushu, Japan. **CP-184**-
P. Lindskog and L. Ljung.
Ensuring certain physical properties in black box models by applying
fuzzy techniques.
In
*Proc. of the 11th IFAC Symposium on System Identification*, volume 1, pages 721-727, 1997. SYSID'97, Kitakyushu, Japan. **CP-185**-
L. Ljung.
Developments for the system identification toolbox for MATLAB.
In
*Proc. of the 11th IFAC Symposium on System Identification*, volume 1, pages 969-975, 1997. SYSID'97, Kitakyushu, Japan. **CP-186**-
M. Gevers, L. Ljung, and P. M. J. Van den Hof.
Asymptotic variance expressions for closed-loop identification and
their relevance in identification for control.
In
*Proc. of the 11th IFAC Symposium on System Identification*, volume 1, pages 1449-1455, 1997. SYSID'97, Kitakyushu, Japan. **CP-187**-
D. E. Rivera, S. Adusumilli, A. Stenman, F. Gustafsson, T.
McKelvey, and L. Ljung.
"just-in-time" models for improved identification and control.
In
*American Inst. of Chemical Engineers (AIChE) Annual Meeting 1997*, 1997. **CP-188**-
L. Ljung and U. Forssell. Variance Results for Closed-loop
Identification Methods. In
*Proceedings of the 36th IEEE Conference on Decision and Control*, San Diego, CA, pp 2435-2440, December 1997. **CP-189**-
N. Bergman and L. Ljung. Point-mass Filter and Cramer-Rao Bound
for Terrain-Aided Navigation. In
*Proceedings of the 36th IEEE Conference on Decision and Control*, San Diego, CA, pp 565-570, December 1997. **CP-190**-
L. Ljung. Identification, Model Validation and Control.
Plenary Presentation at
*The 36th IEEE Conference on Decision and Control*,San Diego, CA, December 1997. **CP-191**-
L. Ljung. Identification for Control - What is There to Learn?
*Proc. Workshop on Learning, Control and Hybrid Systems*Bangalore, India, January 1998. **CP-192**-
L.Ljung and U. Forsell.
Bias, variance and optimal experiment design: Some comments on closed
loop identification.
In
*Proc. Colloquim on Control Problems in Honor of Prof. I.D. Landau*, Paris, June 1998. Springer Verlag. **CP-193**-
U. Forssell and L. Ljung. Identification of unstable systems using
output error and Box-Jenkins model structures
*Proc. 37th IEEE Conference on Decision and Control*,pages 3932-3927, Tampa, FL, December 1998. **CP-194**-
U. Forssell and L. Ljung. Identification for control: Some results on
optimal design
*Proc. 37th IEEE Conference on Decision and Control*,pages 3384-3389, Tampa, FL, December 1998. **CP-195**-
A. Hagenblad and L. Ljung. Maximum Likelihood Identification of Wiener
models with a linear regression initialization
*Proc. 37th IEEE Conference on Decision and Control*pages --, Tampa, FL, December 1998. **CP-196**-
L. Ljung. Identification, Model Validation and Control.
Plenary Presentation at
*The 35th IEEE Conference on Decision and Control*,San Diego, CA, December 1997. **CP-197**- A. Bemporad, Jacob Roll, and Lennart Ljung.

Identification of hybrid systems via mixed-integer programming.

In*Proc. IEEE Conf. Decision and Control*, Orlando, FL, pp 786-792 Dec 2001. **CP-198**- Wolfgang Reinelt and Lennart Ljung.

Robust control of identified models with mixed parametric and non-parametric uncertainties.

In*Proc. of the European Control Conference*, pages 3564-3569, Porto, Portugal, Sep 2001. **CP-199**- Fredrik Tjärnström and Lennart Ljung.

Variance properties of a two-step arx estimation procedure.

In*Proceedings of the European Control Conference*, pages 1840-1845, Porto, Portugal, Sep 2001. **CP-200**- Torkel Glad, Anders Helmersson, and Lennart Ljung.

Uncertain lti-models for linear control design of nonlinear systems.

In*Proc. 40th IEEE Conf. on Decision and Control*, Orlando, FL, Aug 2001. **CP-201**- D. A. Murano, A. S. Poznyak, and Lennart Ljung.

Robust high-gain DNN observer for nonlinear stochastic continuous time systems.

In*Proc 40th IEEE Conf. Decision and Control*, Orlando, FL, Dec 2001. **CP-202**- Lennart Ljung.

Black-box models from input-output measurements.

In*Proc. 18th IEEE Instrumentation and Measurement Technology Conference*, pages 138 - 146, Budapest, May 2001. **CP-203**- Lennart Ljung.

Model error modeling and control design.

In*Proc IFAC Symposium SYSID 2000.*, pages WeAM1-3, Santa Barbara, CA, Jun 2000. **CP-204**- Lennart Ljung.

Version 5 of the system identification toolbox for use with matlab - with object orientation.

In*Proc IFAC Symposium SYSID 2000*, pages ThPM5-5, Santa Barbara, Jun 2000. **CP-205**- Lennart Ljung.

Teaching system identification: Goals and format for different courses.

In*PRoc IFAC Symposium, SYSID 2000*, pages ThPM4-3, Santa Barbara, Jun 2000. **CP-206**- Fredrik Tjärnström and Lennart Ljung.

L2-model reduction and variance reduction.

In*PRoc IFAC Symposium, SYSID 2000*, pages FrAM2-5, Santa Barbara, Jun 2000. **CP-207**- Anna Hagenblad and Lennart Ljung.

Maximum likelihood estimation of Wiener models.

In*Proc. 39:th IEEE Conf. on Decision and Control*, pages 2417-2418, Sydney, Australia, Dec 2000. **CP-208**- L. L. Xie and Lennart Ljung.

Aspects on the interpretation of disturbances in system identification.

In*Proc of the 39th IEEE Conference on Decision and Control*, page 668, Sydney, Australia, Dec 2000. **CP-209**- R. Wallin, A. Isaksson, and Lennart Ljung.

An iterative method for identification of ARX models from incomplete data.

In*Proc. 39th IEEE Conference on Decision and Control*, page 203, Sydney, Australia, Dec 2000. **CP-210**- Anders Stenman, Fredrik Gustafsson, D.E. Rivera, Lennart Ljung, and Tomas
McKelvey.

On adaptive smoothing of empirical transfer function estimates.

In H.F. Chen and B. Wahlberg, editors,*Preprints of the 14th World Congress of IFAC, Beijing, P. R. China*, volume H, pages 415-420. Elsevier Science, Jul 1999. **CP-211**- Fredrik Tjärnström and Lennart Ljung.

Estimating the variance in case of undermodeling using bootstrap.

In*Proceedings of the 38th IEEE Conference on Decision and Control*, pages 2394-2399, Pheonix, Arizona, USA, Dec 1999. **CP-212**- P. Carrette and Lennart Ljung.

Efficient computation of cramer-rao bounds for the transfer functions of MIMO state-space systems.

In H. F. Chen, D. Z. Cheng, and J.F. Zhang, editors,*14th World Congress of IFAC*, volume H, pages 247-252, Beijing, China, July 1999. **CP-213**- Lennart Ljung.

Estimation focus in system identification: Prefiltering, noise models, and prediction.

In*IEEE Conference on Decision and Control*, Dec 1999. **CP-214**- Fredrik Tjärnström and Lennart Ljung.

Minimizing the variance of transfer function estimates.

In V.A. Yakubovich and A.L. Fradkov, editors,*6th Saint Petersburg Symposium on Adaptive Systems Theory*, volume 1, pages 194-200, S:t Petersburg, Russia, Sept 1999. **CP-215**- Lennart Ljung.

Comments on model validation as set membership identification.

In A. Garulli, A. Tesi, and A. Vicino, editors,*Robusteness in Identification and Control*, volume 245 of*Lecture Notes in Control and Information Sciences*, pages 7 -17, Berlin, Sept 1999. Springer Verlag. **CP-216**- Wolfgang Reinelt, A. Garulli, Lennart Ljung, J.H. Braslavsky, and A. Vicino.

Model error concepts in identification for control.

In*Proc. of the 38th IEEE Conference on Decision and Control*, pages 1488-1493, Phoenix, AZ, USA, Dec 1999. **CP-217**- Lennart Ljung.

Model validation and model error modeling.

In B. Wittenmark and A. Rantzer, editors,*The Åström Symposiium on Control*, pages 15 -42, Lund, Sweden, Aug 1999. Studentlitteratur. **CP-218**- A.V. Nazin and L. Ljung.

Asymptotically Optimal SMoothing of Averaged LMS for Regression.

In*Proc 15th IFAC World Congress*,Barcelona, July, 2002. **CP-219**- Lennart Ljung.

System Identification and Simple Process Models.

In*Proc AdCONIP 02, Int. Symposium on Advanced Control of Industrial Processes*, pp 13-14, Mumamoto, Japan, June 2002. **CP-220**- L.L. Xie and L. Ljung.

Estimate Physical Parameters by Black Box Modeling.

In*Proc. Chinese Control Conference*, June 2002. **CP-221**- Martin Enqvist and Lennart Ljung.

Approximation of nonlinear systems in a neighborhood of lti systems. In*Reglerm**öte 2002*, pages 289–291, May 2002. **CP-222**- S. J. Qin, Lennart Ljung, and J. Wang.

Subspace identification methods using parsimonious model formulation. In*Proc AIChE Annual**Meeting 2002*, number Paper 255c, Indianapolis, IN, USA, November 2002. Abstract Only. **CP-223**- Martin Enqvist and Lennart Ljung.

Estimating nonlinear systems in a neighborhood of lti-approximants. In*Proc. of the 41st IEEE Conference**on Decision and Control*, pages 1005–1010, Las Vegas, NV, December 2002. **CP-224**- Jacob Roll, A. Nazin, and Lennart Ljung.

A non-asymptotic approach to local modelling. In*Proc. 41st IEEE Conference on Decision and**Control*, Las Vegas, USA, December 2002. **CP-225**- Jacob Roll, A. Nazin, and Lennart Ljung.

A non-asymptotic approach to local modelling. In*Fourth Conference on Computer Science and**Systems Engineering in Link**öping*, pages 75–80, Norrköping, Sweden, October 2002. **CP-226**- Lennart Ljung.

Identification for control: Simple process model. In*Proc. 41st IEEE Conference on Decision and Control*, Las Vegas, NV, December 2002. **CP-227**- David Lindgren and Lennart Ljung.

Clustered regression analysis. In*Proc. of the 41st IEEE Conference on Decision and Control*, pages 1838–1844, Las Vegas, NV, December 2002. **CP-228**- Markus Gerdin, Torkel Glad, and Lennart Ljung.

Parameter estimation in linear differential-algebraic equations. In*Proceedings of the**13th IFAC Symposium on System Identification*, pages 1530–1535. IFAC, August 2003. **CP-229**- Martin Enqvist and Lennart Ljung.

Linear models of nonlinear FIR systems with Gaussian inputs. In*Preprints of the 13th IFAC Symposium**on System Identification*, pages 1910–1915, Rotterdam, The Netherlands, August 2003. **CP-230**- Ingela Lind and Lennart Ljung.

Structure selection with ANOVA: Local linear models. In S. Weiland P. van der Hof, B. Wahlberg, editor,*Proc. 13th IFAC Symposium on System Identification*, pages 51 – 56, Rotterdam, the Netherlands,, August 2003. **CP-231**- S.J. Qin and Lennart Ljung. Closed-loop subspace identification
with innovation estimation. In S. Weiland P. van der Hof, B. Wahlberg,
editor,
*Proc. 13th IFAC Symposium on System Identification*, pages 887–892, Rotterdam, The Netherlands, August 2003. **CP-232**- Lennart Ljung.

Version 6 of the system identification toolbox. In S. Weiland P. van der Hof, B. Wahlberg, editor,*Proc. 13th IFAC**Symposium on System Identification*, pages 989 – 994, Rotterdam, The Netherlands, December 2003. **CP-233**- P. Parrilo and Lennart Ljung.

Initialization of physical parameter estimates. In S. Weiland P. van der Hof, B. Wahlberg, editor,*Proc. 13th**IFAC Symposium on System Identification*, pages 1524 – 1529, Rotterdam, The Netherlands, August 2003. **CP-234**- Lennart Ljung.

Educational aspects of identification software user interfaces. In S. Weiland P. van der Hof, B. Wahlberg, editor,*Proc. 13th**IFAC Symposium on System Identification*, pages 1590 –1594, Rotterdam, The Netherlands, August 2003. **CP-235**- S. J. Qin and Lennart Ljung.

Parallel QR implementation of subspace identification with parsimonious models. In S. Weiland P. van der Hof, B. Wahlberg, editor,*Prc. 13th IFAC Symposium on System identification*, pages 1631 – 1636, Rotterdam, The Netherlands, August 2003. **CP-236**- Lennart Ljung.

Aspects and experiences of user choices in subspace identification methods. In S .Weiland P. van der Hof, B. Wahlberg, editor,*Proc. 13th IFAC Symposium on System Identification*, pages 1802 – 1807, Rotterdam, The Netherlands, August 2003. **CP-237**- Lennart Ljung.

Initialisation aspects for subspace and output-error identification methods. In J. Maciejowski, editor,*Proc. European Control**Conference, ECC 03*, Cambridge, UK, September 2003. **CP-238**- Jacob Roll, A. Nazin, and Lennart Ljung.

Local modelling with a priori known bounds using direct weight optimization. In*European**Control Conference*, Cambridge, September 2003. **CP-239**- Jacob Roll, A. Nazin, and Lennart Ljung.

Local modelling of nonlinear dynamic systems using direct weight optimization. In*13th**IFAC Symposium on System Identification*, pages 1554–1559, Rotterdam, August 2003. **CP-240**- Svante Björklund and Lennart Ljung.

A review of time-delay estimation techniques. In*42nd IEEE Conference on Decision and Control*, Hyatt Regency Maui, Hawaii, USA Hyatt Regency Maui, Hawaii, USA, December 2003. **CP-241**- Lennart Ljung.

State of the art in linear system identification: Time and frequency domain methods. In*Proceedings of th 2004 American**Control Conference*, page Paper WeM01.1, Boston, MA, July 2004. **CP-242**- Lennart Ljung.

Integrated frequency-time domain tools for system identification. In*Proc of th 2004 American Control Conference*, Boston, MA, July 2004. **CP-243**- Q. Zhang and Lennart Ljung.

Multiple steps prediction with nonlinear arx models. In*Proc. NOLCOS 2004 - IFAC Symposium on Nonlinear**Control Systems*, Stuttgart, Germany, September 2004. **CP-244**- A. Juditsky, A. Nazin, Jacob Roll, and Lennart Ljung.

Adaptive DWO estimator of a regression function. In*Proc. NOLCOS 2004 -**IFAC Symposium on Nonlinear Control Systems*, Stuttgart, Germany, September 2004. **CP-245**- Lennart Ljung, Q. Zhang, P. Lindskog, and A. Juditsky.

Modeling a non-linear electric circuit with black box and grey box models. In*Proc. NOLCOS 2004 - IFAC Symposium on Nonlinear Control Systems*, Stuttgart, Germany, September 2004. **CP-246**- Martin Enqvist and Lennart Ljung.

LTI approximations of slightly nonlinear systems: Some intriguing examples. In*Proc. NOLCOS 2004**- IFAC Symposium on Nonlinear Control Systems*, Stuttgart, Germany, September 2004. **CP-247**- David Lindgren and Lennart Ljung.

Nonlinear dynamics isolated by delaunay triangulation criteria. In*Proc. of the 43st IEEE Conference on**Decision and Control*, December 2004. **CP-248**- J. Johansson, David Lindgren, M. Cooper, and Lennart Ljung.

Interactive analysis of time-varying systems using volume graphics. In*Proc. of the 43st IEEE Conference on Decision and Control*, December 2004. **CP-249**- Martin Enqvist and Lennart Ljung.

LTI approximations of slightly nonlinear systems: Some intriguing examples. In*Reglerm**öte 2004*, May 2004. **CP-250**- W. Lin, S . J. Qin, and Lennart Ljung.

On consistency of closed-loop subspace identification with innovation estimation. In*Proc. 43rd IEEE**Conference on Decision and Control*, page Paper WeB11.2, Paradise Island, Bahamas, December 2004. **CP-251**- W Lin, S. J. Qin, and Lennart Ljung.

Comparison of subspace identification methods for systems operating in closed loop. In*Proc. 16th**IFAC World Congress*, Prague, Czech Republic, July 2005. **CP-252**- Torkel Glad, Anders Helmersson, Martin Enqvist, and Lennart Ljung.

Controllers for amplitude limited model error models. In*Proc. 16th IFAC**World Congress*, Prague, Czech Republic, July 2005. **CP-253**- Jonas Gillberg and Lennart Ljung.

Frequency-domain identification of continuous-time output error models from sampled data. In*Proceedings**of 16th IFAC World Congress*, Prague, Czech Republic, July 2005. **CP-254**- Jonas Gillberg and Lennart Ljung.

Frequency-domain identification of continuous-time arma models from sampled data. In*Proceedings of 16th**IFAC World Congress*, Prague, Czech Republic, July 2005. **CP-255**- J. Johansson, David Lindgren, M. Cooper, and Lennart Ljung.

Interactive visualization as a tool for analysing time-varying and non-linear systems. In P. Zitek, editor,*Proc 16th IFAC World Congress*, pages Tu–E03–Tp/8, Prague, Czech Republic, July 2005. **CP-256**- David Lindgren and Lennart Ljung.

Nonlinear dynamics identified by multi-index models. In P. Zitek, editor,*Proc. 16th IFAC World Congress*, pages Mo–M01–T0/4, Prague, Czech Republic, July 2005. **CP-257**- Markus Gerdin, Torkel Glad, and Lennart Ljung.

Well-posedness of filtering problems for stochastic linear DAE models. In*Proc 44th**IEEE Conference on Decision and Control*, pages 350–355, Seville, Spain, December 2005. **CP-258**- Jacob Roll, A. Nazin, and Lennart Ljung.

A general direct weight optimization framework for nonlinear system identification. In*16th IFAC**World Congress on Automatic Control*, pages Mo–M01–TO/1, Prague, Czech Republic, July 2005. **CP-259**- Jacob Roll, Martin Enqvist, and Lennart Ljung.

Consistent nonparametric estimation of NARX systems using convex optimization. In*CDC-ECC 2005*, pages 3129–3134, Seville, Spain, December 2005. **CP-260**- Jacob Roll, Ingela Lind, and Lennart Ljung.

Connections between optimisation-based regressor selection and analysis of variance. In*Reglerm**öte 2006*, Stockholm, Sweden, May 2006. **CP-261**- Jacob Roll, Ingela Lind, and Lennart Ljung.

Connections between optimisation-based regressor selection and analysis of variance. In*45th**IEEE Conference on Decision and Control*, San Diego, USA, December 2006. **CP-262**- A. Nazin, Jacob Roll, and Lennart Ljung.

Direct weight optimization for approximately linear functions: Optimality and design. In*14th IFAC**Symposium on System Identification*, Newcastle, Australia, March 2006. **CP-263**- Lennart Ljung.

Identification of nonlinear systems. plenary paper. In*Proc. 9th International Conference on Control, Automation, Robotics and**Vision, ICARCV 2006.*, Singapore, December 2006. **CP-264**- Lennart Ljung.

Some aspects on nonlinear system identification. In*Proc 14th IFAC Symposium on System Identification*, Newcastle, Australia, March 2006. **CP-265**- Lennart Ljung, Q. Zhang, P. Lindskog, A. Iouditski, and R. Singh.

An integrated system identification toolbox for linear and non-linear models. In*Proc. 14th IFAC Symposium on System Identification*, Newcaste, Australia, March 2006. **CP-266**- Jonas Gillberg and Lennart Ljung.

Frequency-domain identification of continuous-time output error models from non-uniformly sampled data. In*Proc. IFAC Symposium on System Identification, SYSID06*, Necastle, Australia, March 2006. **CP-267**- Q. Zhang, A. Iouditski, and Lennart Ljung.

Identification of Wiener system with monotonous nonlinearity. In*Proc. IFAC Symposium on**System Identification SYSID 06*, Newcastle, Australia, March 2006. **CP-268**- Xiao-Li Hu, Thomas Schön, and Lennart Ljung.

A basic convergence result for particle filtering. In*Proceedings of the 7th IFAC Symposium on**Nonlinear Control Systems (NOLCOS)*, Pretoria, South Africa, August 2007. **CP-269**- A. V. Nazin, Jacob Roll, and Lennart Ljung.

Direct weight optimization in nonlinear function estimation and system identification. In*The Sixth International Conference on System Identification and Control**Problems (SICPRO’07)*, Moscow, Russia, January 2007. Plenary Session. **CP-270**- Henrik Ohlsson, Jacob Roll, Torkel Glad, and Lennart Ljung.

Using manifold learning for nonlinear system identification. In*Proceedings of the**7th IFAC Symposium on Nonlinear Control Systems (NOLCOS)*, Pretoria, South Africa, August 2007. **CP-271**- Xiao-Li Hu, Thomas Schön, and Lennart Ljung.

A robust particle filter for state estimation – with convergence results. In*Proceedings of**the 46th IEEE Conference on Decision and Control (CDC)*, New Orleans, USA, December 2007. **CP-272**- >A. V. Nazin, Jacob Roll, Lennart Ljung, and I. Grama.

Direct weight optimization in statistical estimation and system identification. In*The**Seventh International Conference on System Identification and Control**Problems (SICPRO’08)*, January 2008. **CP-273**- Henrik Ohlsson, Jacob Roll, A. Brun, H. Knutsson, M. Andersson,
and Lennart Ljung.

Direct weight optimization applied to discontinuous functions. In*Proceedings of the 47th IEEE Conference on Decision and**Control*, Cancun, Mexico, December 2008. **CP-274**- Henrik Ohlsson, Jacob Roll, and Lennart Ljung.

Manifold-constrained regressors in system identification. In*Proceedings of the 47th IEEE**Conference on Decision and Control*, Cancun, Mexico, December 2008. **CP-275**- Svante Gunnarsson, Lennart Ljung, L. Nielsen, and
Inger Erlander Klein.

Framstående utbildningsmiljö - hur blir man det? In*Ingenj**örsutbildningarnas Utvecklingskonferens*, Stockholm , Sweden, December 2008. **CP-276**- Lennart Ljung and A Wills.

Issues in sampling and estimating continuous-time models with stochastic disturbances. In*Proc. 17th IFAC**World Congress*, Seoul, Korea, July 2008. **CP-277**- Anna Hagenblad, Lennart Ljung, and A. Wills.

Maximum likelihood identification of Wiener models. In*Proc. 17th IFAC World Congress*, Seoul, Korea, July 2008. **CP-278**- X. L. Hu and Lennart Ljung.

New convergence results for the least squares identification algorithm. In*Proc. 17th IFAC World Congress*, Seoul, Korea, July 2008. **CP-279**- Lennart Ljung.

Perspectives on system identification. In*Proc. 17th**IFAC World Congress*, Seoul, Korea, July 2008. (Plenary session). **CP-280**- Christian Lyzell, Jacob Roll, and Lennart Ljung.

The use of nonnegative garrote for order selection of arx models. In*Proceedings of**the 47th Conference on Decision and Control*, pages 1974–1979, December 2008. **CP-281**- Henrik Ohlsson, Jacob Roll, and Lennart Ljung.

Manifold-constrained regressors in system identification. In*Proceedings of Reglerm**öte 2008*, Luleå, Sweden, April 2008. **CP-282**- Christian Lyzell, Martin Enqvist, and Lennart Ljung.

Handling certain structure information in subspace identification. In*Proceedings of the 15th**IFAC Symposium on System Identification*, April 2009. **CP-283**- Christian Lyzell, Torkel Glad, Martin Enqvist, and Lennart Ljung.

Identification aspects of Ritt’s algorithm for discrete-time systems. In*Proceedings of the 15th IFAC Symposium on System Identification*, April 2009. **CP-284**- Henrik Ohlsson and Lennart Ljung.

Gray-box identification for high-dimensional manifold constrained regression. In*15th IFAC**Symposium on System Identification, SYSID 2009*, July 2009. **CP-285**- J. Schoukens, J. Suykens, and Lennart Ljung.

Wiener-Hammerstein benchmark. In*Proc. 15 IFAC Symposium on System Identification*, S:t Malo, France, July 2009. **CP-286**- J. Wang, Q. Zhang, and Lennart Ljung.

Optimality analysis of the two stage algorithm hammerstein system identification. In*Proc. 15 IFAC**Symposium on System Identification*, Saint-Malo, France, July 2009. **CP-287**- A. Juditsky, Lennart Ljung, A. V. Nazin, and A. Nemirovski.

Minimax confidence intervals for pointwise nonparametric regression estimation. In*Proc. 15 IFAC Symposium on System Identification*, Saint-Malo, France, July 2009. **CP-288**- Lennart Ljung.

Experiments with identification of continuous time models. In*Proc. 15 IFAC Symposium on System Identification*, Saint-Malo. France, May 2009. **CP-289**- Lennart Ljung, R. Singh, Q. Zhang, P. Lindskog, and A. Juditski.

Developments in Mathworks system identification toolbox. In*Proc. 15**IFAC Symposium on System Identification*, Saint- Malo, July 2009. **CP-290**- Henrik Ohlsson, M. Bauwens, and Lennart Ljung.

On manifolds, climate reconstruction and bivalve shells. In*48th IEEE Conference on**Decision and Control*, December 2009. **CP-291**- Roger Larsson, Zoran Sjanic, Martin Enqvist, and Lennart Ljung.

Direct prediction-error identification of unstable nonlinear systems applied to flight test data. In*Proceedings of the 15th IFAC Symposium on System**Identification*, pages 144–149, Saint-Malo, France, July 2009. **CP-292**- Alf Isaksson, David Törnqvist, Johan Sjöberg, and Lennart Ljung.

Grey-box identification based on horizon estimation and nonlinear optimization. In*41st ISCIE International Symposium on Stochastic**Systems theory and its applications (SSS’09)*, pages 1–6, Konan University, Kobe, Japan, November 2009. **CP-293**- Lennart Ljung.

Approaches to identification of nonlinear systems. In*Proc. 29th Chinese Control Conference*, Beijing, China, July 2010. **CP-294**- Tianshi Chen, Thomas Schön, Henrik Ohlsson, and Lennart Ljung.

Decentralization of particle filters using arbitrary state decomposition. In*Proc. IEEE Conf. Decision and Control*, pages 7383–7388, Atlanta, United States, December 2010. **CP-295**- Henrik Ohlsson, Fredrik Gustafsson, Lennart Ljung, and S. Boyd.

State smoothing by sum-of-norms regularization. In*49th IEEE**Conference on Decision and Control*, December 2010. **CP-296**- Henrik Ohlsson, Fredrik Gustafsson, Lennart Ljung, and S. Boyd.

Trajectory generation using sum-of-norms regularization. In*49th IEEE**Conference on Decision and Control*, December 2010. **CP-297**- Tianshi Chen, Henrik Ohlsson, and Lennart Ljung.

On the estimation of transfer functions, regularizations and gaussian processes ? revisited. In NA, editor,*Proc. IFAC World Congress*, volume NA, page NA, Milan, Italy, August 2011. **CP-298**- Fredrik Lindsten, Henrik Ohlsson, and Lennart Ljung.

Clustering using sum-of-norms regularization; with application to particle filter output computation. In*Proceedings of the 2011 IEEE Statistical Signal**Processing Workshop (SSP)*, pages 201–204, June 2011. **CP-299**- A Wills, Thomas Schön, Lennart Ljung, and B Ninness.

Blind identification of Wiener models. In S. Bittanti, editor,*Proc 15th IFAC**World Congress,*, Milan, Italy, August 2011. **CP-300**- T Falck, Henrik Ohlsson, Lennart Ljung, J.A.K. Suykens, and
B De Moor.

Segmentation of time series from nonlinear dynamical systems. In S. Bittanti, editor,*Proc 18th IFAC World Congress*, Milan, Italy, August 2011. **CP-301**- Henrik Ohlsson and Lennart Ljung.

Identification of piecewise afffine systems using sum-of-norms regularization. In S. Bittanti, editor,*Proc.**18th IFAC World Congress*, Milan, Italy, August 2011. **CP-302**- >Tianshi Chen, Henrik Ohlsson, G Goodwin, and Lennart Ljung.

Kernel selection in linear system identification. part II: A classical perspective. In*Proc 50th Conference on Decision and Control*, Orlanda, FL, USA, December 2011. **CP-303**- Henrik Ohlsson and Lennart Ljung.

A convex approach to subspace clustering. In*Proc 50th Conference on Decision and Control*, Orlanda, FL, USA, December 2011. **CP-304**- D. S. Carracsco, Lennart Ljung, G. C. Goodwin, and J. C. Aguero.

On the accurcy of parameter estimation for continuous time nonlinear systems from sampled data. In*Proc 50th Conference on Decision and**Control*, Orlando, FL, USA, December 2011. **CP-305**- Lennart Ljung and R Singh.

Version 8 of the system identification toolbox. In R. Pintelon, editor,*Proc 16th IFAC Sympsium on SYSID*, Brussels, July 2012. **CP-306**- Tianshi Chen, Y Zhao, and Lennart Ljung. Impulse response
estimation with binary measurements: a regularized FIR model. In
R. Pintelon, editor,
*Proc 16th IFAC Sympsium on SYSID*, Brussels, August 2012. **CP-307**- Henrik Ohlsson, Tianshi Chen, Sina Khoshfetrat Pakazad, Lennart
Ljung, and S. S. Sastry.

Distributed change detection. In R. Pintelon, editor,*Proc 16th IFAC Sympsium on SYSID*, Brussels, August 2012.

## Professor of the Chair of Automatic Control

**Phone:**- +46 13 281310

**Mobile (private):**- +46 708 281310

**E-mail:**- ljung_at_isy.liu.se

**Address:**- Dept. of Electrical Engineering
- Linköping University
- SE-581 83 Linköping
- Sweden

**Visiting Address:**- Campus Valla
- Building B
- Room 2A:542 (in the A corridor on the ground floor between entrance 25 and 27)

**Google Scholar:**- Google Citations

Page responsible: Lennart Ljung

Last updated: 2012-10-18