Identification of a crystal detector using a block structured nonlinear feedback model

Author

Schoukens, J. ; Gommé, L. ; Van Moer, Wendy ; Rolain, Y.

Author_Institution

Vrije Univ. Brussel, Brussel

fYear

2007

fDate

1-3 May 2007

Firstpage

1

Lastpage

5

Abstract

This paper studies the identification of a block structured nonlinear Wiener-Hammerstein system that is captured in the feed forward or the feedback path of a closed loop system. First nonparametric initial estimates are generated for the three dynamic blocks, modelled by their frequency response function, and the static nonlinear system, described using cubic splines. Next a parametric model is identified. Random or periodic excitations can be used in the experiments. The method is illustrated on the identification of an Agilent HP420C crystal detector.

Keywords

closed loop systems; control system analysis; identification; nonlinear systems; sensors; signal processing equipment; test equipment; Agilent HP420C; Wiener-Hammerstein system; block structured nonlinear feedback model; closed loop system; crystal detector; cubic splines; frequency response function; nonparametric initial estimate; parametric model identification; static nonlinear system; Closed loop systems; Detectors; Feedback loop; Feeds; Instrumentation and measurement; Linear systems; Nonlinear dynamical systems; Nonlinear systems; Output feedback; Parametric statistics; block structure; crystal detector; non linear systems; 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.2007.379031

Filename

4258132