DocumentCode
2910572
Title
Stable Approximations of Unstable Models
Author
Haene, T.D. ; Pintelon, R. ; Guillaume, P.
Author_Institution
Vrije Univ.Brussel, Brussels
fYear
2007
fDate
1-3 May 2007
Firstpage
1
Lastpage
6
Abstract
This paper considers the following problem: starting from noisy data a model for the transfer function is estimated. For a finite number of data points, the model is not guaranteed to be stable, even when the true linear system is known to be stable. D´haene et al. [2006] describes an iterative procedure for calculating a stable approximation of an unstable model. This paper presents an improved algorithm resulting in significantly smaller approximation errors. In addition stable minimax solutions can also be generated.
Keywords
approximation theory; iterative methods; numerical stability; transfer functions; approximation errors; iterative procedure; noisy data; stable approximations; system identification; transfer functions; unstable models; Cost function; Frequency; Instrumentation and measurement; Iterative algorithms; Linear systems; Matrix converters; Minimax techniques; Stability; Testing; Transfer functions; minimax; stability; system identification;
fLanguage
English
Publisher
ieee
Conference_Titel
Instrumentation and Measurement Technology Conference Proceedings, 2007. IMTC 2007. IEEE
Conference_Location
Warsaw
ISSN
1091-5281
Print_ISBN
1-4244-0588-2
Type
conf
DOI
10.1109/IMTC.2007.379369
Filename
4258196
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