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Subspace-Based Multivariable System Identification from Frequency Response Data
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
1996 (English)In: IEEE Transactions on Automatic Control, ISSN 0018-9286, E-ISSN 1558-2523, Vol. 41, no 7, 960-979 p.Article in journal (Refereed) Published
Abstract [en]

Two noniterative subspace-based algorithms which identify linear, time-invariant MIMO (multi-input/multioutput) systems from frequency response data are presented. The algorithms are related to the recent time-domain subspace identification techniques. The first algorithm uses equidistantly, in frequency, spaced data and is strongly consistent under weak noise assumptions. The second algorithm uses arbitrary frequency spacing and is strongly consistent under more restrictive noise assumptions, promising results are obtained when the algorithms are applied to real frequency data originating from a large flexible structure.

Place, publisher, year, edition, pages
1996. Vol. 41, no 7, 960-979 p.
Keyword [en]
MIMO systems, Flexible structures, Frequency response, Identification, Linear systems
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-56359DOI: 10.1109/9.508900OAI: oai:DiVA.org:liu-56359DiVA: diva2:318588
Available from: 2010-05-08 Created: 2010-05-07 Last updated: 2013-07-16

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Ljung, Lennart

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