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Building Models from Frequency Domain Data
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
1994 (English)Report (Other academic)
Abstract [en]

The interplay between the time and frequency domains for linear systems is well known and most useful. In the case of identifying linear models from observed data, this interplay manifests itself in two ways.

The observed data is of course primarily recorded in the time domain (even though the recording equipment may deliver them in the frequency domain). To build linear models from the data we can either do the fitting in the time domain and evaluate the resulting model’s properties in the frequency domain. We can also transfer the data themselves to the frequency domain and fit models directly there. In this contribution we shall consider some aspects of these two possibilities.

Place, publisher, year, edition, pages
1994. , 13 p.
LiTH-ISY-R, ISSN 1400-3902 ; 1566
Keyword [en]
Linear system identification, Frequency domain, Linear models
Keyword [sv]
Cybernetik Informationsteori
National Category
Control Engineering
URN: urn:nbn:se:liu:diva-55161ISRN: LITH-ISY-R-1566OAI: diva2:315753
Available from: 2010-04-29 Created: 2010-04-29 Last updated: 2014-09-15Bibliographically approved

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Ljung, Lennart
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Automatic ControlThe Institute of Technology
Control Engineering

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