Chen, Tianshi; Ohlsson, Henrik; Ljung, Lennart On the estimation of transfer functions, regularizations and Gaussian processes-revisited. (English) Zbl 1269.93126 Automatica 48, No. 8, 1525-1535 (2012). MSC: 93E12 93E10 PDFBibTeX XMLCite \textit{T. Chen} et al., Automatica 48, No. 8, 1525--1535 (2012; Zbl 1269.93126) Full Text: DOI Link
Gillberg, Jonas; Ljung, Lennart Frequency domain identification of continuous-time output error models. I: Uniformly sampled data and frequency function approximation. (English) Zbl 1214.93113 Automatica 46, No. 1, 1-10 (2010). MSC: 93E12 93C57 93C80 PDFBibTeX XMLCite \textit{J. Gillberg} and \textit{L. Ljung}, Automatica 46, No. 1, 1--10 (2010; Zbl 1214.93113) Full Text: DOI
Ljung, Lennart Frequency domain versus time domain methods in system identification – revisited. (English) Zbl 1118.93310 Francis, Bruce A. (ed.) et al., Control of uncertain systems: modelling, approximation, and design. A workshop on the occasion of Keith Glover’s 60th birthday. Berlin: Springer (ISBN 3-540-31754-6/pbk). Lecture Notes in Control and Information Sciences 329, 277-291 (2006). MSC: 93B30 93C80 PDFBibTeX XMLCite \textit{L. Ljung}, Lect. Notes Control Inf. Sci. 329, 277--291 (2006; Zbl 1118.93310)
Tjärnström, F.; Ljung, L. \(L_{2}\) model reduction and variance reduction. (English) Zbl 1008.93016 Automatica 38, No. 9, 1517-1530 (2002). Reviewer: Liviu Goras (Iaşi) MSC: 93B11 93B30 PDFBibTeX XMLCite \textit{F. Tjärnström} and \textit{L. Ljung}, Automatica 38, No. 9, 1517--1530 (2002; Zbl 1008.93016) Full Text: DOI
Xie, Liang-Liang; Ljung, Lennart Asymptotic variance expressions for estimated frequency functions. (English) Zbl 1008.93064 IEEE Trans. Autom. Control 46, No. 12, 1887-1899 (2001). Reviewer: Yuliya S.Mishura (Kyïv) MSC: 93E10 93C80 93E12 PDFBibTeX XMLCite \textit{L.-L. Xie} and \textit{L. Ljung}, IEEE Trans. Autom. Control 46, No. 12, 1887--1899 (2001; Zbl 1008.93064) Full Text: DOI
Ljung, L. Letters to the editor on the paper “Dynamic wavelet and equivalent models”. (English) Zbl 1293.93538 Eur. J. Control 6, No. 3, 295-296 (2000). MSC: 93C80 93C10 65T60 PDFBibTeX XMLCite \textit{L. Ljung}, Eur. J. Control 6, No. 3, 295--296 (2000; Zbl 1293.93538) Full Text: DOI
Ljung, Lennart; Guo, Lei The role of model validation for assessing the size of the unmodeled dynamics. (English) Zbl 0889.93018 IEEE Trans. Autom. Control 42, No. 9, 1230-1239 (1997). Reviewer: T.Semerdjiev (Sofia) MSC: 93B30 93C80 93A30 PDFBibTeX XMLCite \textit{L. Ljung} and \textit{L. Guo}, IEEE Trans. Autom. Control 42, No. 9, 1230--1239 (1997; Zbl 0889.93018) Full Text: DOI Link
McKelvey, Tomas; Akçay, Hüseyin; Ljung, Lennart Subspace-based multivariable system identification from frequency response data. (English) Zbl 0855.93020 IEEE Trans. Autom. Control 41, No. 7, 960-979 (1996). MSC: 93B30 93C80 74M05 PDFBibTeX XMLCite \textit{T. McKelvey} et al., IEEE Trans. Autom. Control 41, No. 7, 960--979 (1996; Zbl 0855.93020) Full Text: DOI Link
McKelvey, Tomas; Akçay, Hüseyin; Ljung, Lennart Subspace-based identification of infinite-dimensional multivariable systems from frequency-response data. (English) Zbl 0859.93017 Automatica 32, No. 6, 885-902 (1996). Reviewer: Y.Cherruault (Paris) MSC: 93B30 93C25 93C80 PDFBibTeX XMLCite \textit{T. McKelvey} et al., Automatica 32, No. 6, 885--902 (1996; Zbl 0859.93017) Full Text: DOI
Ljung, Lennart Building models from frequency domain data. (English) Zbl 0835.93013 Åström, K. J. (ed.) et al., Adaptive control, filtering, and signal processing. Based on the proceedings of a workshop that was an integral part of the 1992-93 IMA program on control theory, held at the University of Minnesota, Minneapolis, MN, USA. New York, NY: Springer-Verlag. IMA Vol. Math. Appl. 74, 229-239 (1995). Reviewer: G.Dimitriu (Iaşi) MSC: 93B30 93C05 93C80 PDFBibTeX XMLCite \textit{L. Ljung}, IMA Vol. Math. Appl. 74, 229--239 (1995; Zbl 0835.93013)
Yuan, Zhen-Dong; Ljung, Lennart Unprejudiced optimal open loop input design for identification of transfer functions. (English) Zbl 0584.93065 Automatica 21, 697-708 (1985). Reviewer: H.Hietikko MSC: 93E12 62K99 93C55 93C05 93E10 62M15 PDFBibTeX XMLCite \textit{Z.-D. Yuan} and \textit{L. Ljung}, Automatica 21, 697--708 (1985; Zbl 0584.93065) Full Text: DOI