Identification of Wiener-Hammerstein model with multisegment piecewise-linear characteristic

Author

Hafsi, Sami ; Laabidi, Kaouther ; Ksouri-lahmari, Moufida

Author_Institution

Unit of Res. Anal. & Control of Syst. (ACS), ENIT, Tunis, Tunisia

fYear

2012

fDate

25-28 March 2012

Firstpage

5

Lastpage

10

Abstract

This paper studies the identification of the wiener-Hammerstein model where the static nonlinearities are surrounded by two linear dynamic system. Therefore, we use a special form of nonlinearity representation `the multisegment piecewise-linear characteristic´ and the half-substitution approach to linearize and to separate the model parameters. Hence, due to linearity in the model parameters, we use the recursive least squares.

Keywords

control nonlinearities; identification; least squares approximations; linear systems; piecewise linear techniques; Wiener-Hammerstein model identification; half-substitution approach; linear dynamic system; multisegment piecewise-linear characteristic; nonlinearity representation; recursive least square; static nonlinearities; Analytical models; Control systems; Convergence; Integrated circuit modeling; Noise; Noise measurement; Polynomials; Wiener-Hammerstein; half-substitution; least squares recursive; piecewise-linear characteristic; system identification;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrotechnical Conference (MELECON), 2012 16th IEEE Mediterranean

Conference_Location

Yasmine Hammamet

ISSN

2158-8473

Print_ISBN

978-1-4673-0782-6

Type

conf

DOI

10.1109/MELCON.2012.6196367

Filename

6196367