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Aspects and Experiences of User Choices in Subspace Identification
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
2003 (English)Report (Other academic)
Abstract [en]

Subspace identification methods, such as N4SID, MOESP, CVA etc have proven to be very successful for identification of multivariable, linear dynamic systems. These methods are associated with a number of design variables, or user choices. These include prediction horizons, weighting matrices and ways to perform the estimation. It is known that these choices may have a substantial influence on the model quality, at the same time as there is no comprehensive theory for rational decision making. In this contribution we study certain aspects of the choices, in particular their influence on both bias and variance. We also illustrate some aspects using a larger example, the Tennessee-Eastman identification challenge.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2003. , 9 p.
Series
LiTH-ISY-R, ISSN 1400-3902 ; 2564
Keyword [en]
Subspace methods- -User choices
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-55967ISRN: LiTH-ISY-R-2564OAI: oai:DiVA.org:liu-55967DiVA: diva2:316769
Available from: 2010-04-30 Created: 2010-04-30 Last updated: 2014-09-15Bibliographically approved

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Ljung, Lennart

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf