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Sparse estimation techniques for basis function selection in wideband system identification
KTH, School of Electrical Engineering (EES), Automatic Control.ORCID iD: 0000-0003-0355-2663
KTH, School of Electrical Engineering (EES), Automatic Control.ORCID iD: 0000-0002-9368-3079
KTH, School of Electrical Engineering (EES), Automatic Control.ORCID iD: 0000-0002-1927-1690
2012 (English)In: 16th IFAC Symposium on System Identification, IFAC , 2012, no PART 1, 977-982 p.Conference paper, Published paper (Refereed)
Abstract [en]

This paper considers the use of sparse estimation techniques to determine an appropriate set of basis functions, in terms of the number of poles and their respective location, to be used in a system identification problem. In particular, the problem cast in the paper is based on the identification of set of parameters to represent a system of large dynamic range. The proposed solution is based on a LASSO-type sparse estimator, which provides an automatic method for selecting both the number of poles and their location. A simulation example is provided that consists of a highly resonant system with eight resonances that extends over 9 decades of frequency.

Place, publisher, year, edition, pages
IFAC , 2012. no PART 1, 977-982 p.
Series
IFAC Proceedings Volumes (IFAC-PapersOnline), ISSN 1474-6670 ; 16
Keyword [en]
Automatic method, Basis functions, Dynamic range, Resonant systems, Simulation example, Sparse estimation, System identification problems, Poles, Estimation
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:kth:diva-105444DOI: 10.3182/20120711-3-BE-2027.00281Scopus ID: 2-s2.0-84867087459ISBN: 978-390282306-9 (print)OAI: oai:DiVA.org:kth-105444DiVA: diva2:571459
Conference
Universite Libre de Bruxelles, 11 July 2012 through 13 July 2012, Bruxelles
Funder
ICT - The Next Generation
Note

QC 20121122

Available from: 2012-11-22 Created: 2012-11-21 Last updated: 2016-04-11Bibliographically approved

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Rojas, Cristian R.Hjalmarsson, HåkanWahlberg, Bo

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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Language
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Output format
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