liu.seSearch for publications in DiVA
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
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
System Identification using an Over-Parametrized Model Class - Improving the Optimization Algorithm
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
1997 (English)In: Proceedings of the 36th IEEE Conference on Decision and Control, 1997, 2984-2989 vol.3 p.Conference paper, Published paper (Refereed)
Abstract [en]

The use of an over-parametrized state-space model for system identification has some clear advantages: A single model structure covers the entire class of multivariable systems up to a given order. The over-parametrization also leads to the possibility to choose a numerically stable parametrization. During the parametric optimization the gradient calculations constitute the main computational part of the algorithm. Consequently using more than theminimal number of parameters requiredslows down thealgorithm. However, we show that for any chosen (over)-parametrization it is possible to reduce the gradientcalculations to the minimal amount by constructing the parameter subspace which is orthonormal to the tangent space of the manifold representing equivalent models.

Place, publisher, year, edition, pages
1997. 2984-2989 vol.3 p.
Keyword [en]
Identification, Multivariable systems, Numerical stability, Optimisation, State-space methods
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-93802DOI: 10.1109/CDC.1997.657905ISBN: 0-7803-4187-2 (print)OAI: oai:DiVA.org:liu-93802DiVA: diva2:626751
Conference
36th IEEE Conference on Decision and Control, San Diego, CA, USA, December, 1997
Available from: 2013-06-10 Created: 2013-06-10 Last updated: 2013-06-10

Open Access in DiVA

No full text

Other links

Publisher's full textRelated report

Authority records BETA

Helmersson, Anders

Search in DiVA

By author/editor
Helmersson, Anders
By organisation
Automatic ControlThe Institute of Technology
Control Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
isbn
urn-nbn

Altmetric score

doi
isbn
urn-nbn
Total: 26 hits
CiteExportLink to record
Permanent link

Direct link
Cite
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