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A practical approach to input design for modal analysis using subspace methods
KTH, School of Electrical Engineering (EES), Fusion Plasma Physics.
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre. (System Identification Group)ORCID iD: 0000-0003-0355-2663
2012 (English)In: 16th IFAC Symposium on System Identification, IFAC , 2012, 362-367 p.Conference paper (Refereed)
Abstract [en]

A basic class of multivariate system identification input design methods is proposed. Only reliable numerical linear algebra is used. The underlying idea is to inject energy into the invariant eigenspace for a subset of preestimated plant eigenvalues. Standard Schur pseudotriangular factorisation is used to pretarget a subsequent singular value decomposition. Explicit state-space formulas are given. Examples indicate that the approach may be useful in some practical applications. The approach may be considered user-friendly.

Place, publisher, year, edition, pages
IFAC , 2012. 362-367 p.
, IFAC Proceedings Volumes (IFAC-PapersOnline), ISSN 1474-6670 ; 16
Keyword [en]
Eigenspaces, Eigenvalues, Identification input, Input design, Multivariate systems, Numerical Linear Algebra, State-space, Sub-space methods
National Category
Control Engineering
URN: urn:nbn:se:kth:diva-72598DOI: 10.3182/20120711-3-BE-2027.00167ScopusID: 2-s2.0-84867074485ISBN: 978-390282306-9OAI: diva2:488340
16th IFAC Symposium on System Identification (SYSID 2012), Bruxelles; 11 July 2012 through 13 July 2012
ICT - The Next Generation

QC 20121122

Available from: 2012-02-01 Created: 2012-01-31 Last updated: 2013-04-15Bibliographically approved

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Olofsson, K. Erik J.Rojas, Cristian R.
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