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State of the Art in Linear System Identification: Time and Frequency Domain Methods
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
2007 (English)Report (Other academic)
Abstract [en]

—Identication of time-invariant linear dynamic systems is a mature subject. In this contribution we focus on the interplay between methods that use time and frequency domain data, respectively. The frequency domain data could be either input/output Fourier transforms or frequency functions. We explain how these different kinds of data types are used to fit models, and how closely related the methods are. Of special interest is how transients (initial conditions and deviations from periodic signals) are handled. Direct estimation of time-continuous models is also discussed, as well as software aspects.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2007. , 14 p.
LiTH-ISY-R, ISSN 1400-3902 ; 2797
Keyword [en]
Frequency, Domain, Identification
National Category
Control Engineering
URN: urn:nbn:se:liu:diva-55826ISRN: LiTH-ISY-R-2797OAI: diva2:316505
Available from: 2010-04-30 Created: 2010-04-30 Last updated: 2014-09-08Bibliographically approved

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Ljung, Lennart
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Automatic ControlThe Institute of Technology
Control Engineering

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