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Nuclear norm system identification with missing inputs and outputs
Northrop Grumman Corp, CA USA.
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
University of Calif Los Angeles, CA USA.
2013 (English)In: Systems & control letters (Print), ISSN 0167-6911, E-ISSN 1872-7956, Vol. 62, no 8, 605-612 p.Article in journal (Refereed) Published
Abstract [en]

We present a system identification method for problems with partially missing inputs and outputs. The method is based on a subspace formulation and uses the nuclear norm heuristic for structured low-rank matrix approximation, with the missing input and output values as the optimization variables. We also present a fast implementation of the alternating direction method of multipliers (ADMM) to solve regularized or non-regularized nuclear norm optimization problems with Hankel structure. This makes it possible to solve quite large system identification problems. Experimental results show that the nuclear norm optimization approach to subspace identification is comparable to the standard subspace methods when no inputs and outputs are missing, and that the performance degrades gracefully as the percentage of missing inputs and outputs increases.

Place, publisher, year, edition, pages
Elsevier , 2013. Vol. 62, no 8, 605-612 p.
Keyword [en]
Nuclear norm, System identification, Subspace method, Hankel structure, Low-rank matrix approximation
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-96704DOI: 10.1016/j.sysconle.2013.04.005ISI: 000322054400001OAI: oai:DiVA.org:liu-96704DiVA: diva2:642977
Note

Funding Agencies|National Science Foundation|1128817|

Available from: 2013-08-23 Created: 2013-08-23 Last updated: 2017-12-06

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Hansson, Anders

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CiteExportLink to record
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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
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