Title
Magnitude vector fitting to interval dataMagnitude vector fitting to interval data
Author
Faculty/Department
Faculty of Sciences. Mathematics and Computer Science
Research group
Computational modelling en programming
Department of Mathematics - Computer Sciences
Modeling Of Systems and Internet Communication (MOSAIC)
Publication type
article
Publication
Amsterdam,
Subject
Computer. Automation
Source (journal)
Mathematics and computers in simulation. - Amsterdam
Volume/pages
80(2009):3, p. 572-580
ISSN
0378-4754
ISI
000272921100008
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Vector Fitting is an effective technique for rational approximation of LTI systems. It has been extended to fit the magnitude of the transfer function in absence of phase data. In this paper, magnitude Vector Fitting is modified to work on inequalities which the magnitude of the transfer function has to satisfy, instead of least squares approximation. The new interval version of the magnitude Vector Fitting is proved valuable for multiband filter design and the fitting of noisy magnitude spectra.
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