Periodic signals for measuring nonlinear Volterra kernels

Author

Evans, Ceri ; Rees, David ; Jones, Lee ; Weiss, Michael

Author_Institution

Dept. of Electron. & Inf. Technol., Glamorgan Univ., UK

Volume

45

Issue

2

fYear

1996

fDate

4/1/1996 12:00:00 AM

Firstpage

362

Lastpage

371

Abstract

The frequency-domain measurement of the Volterra kernels of a nonlinear system using periodic multisine signals is now a practical possibility. An analysis is presented of the harmonic output of a Volterra kernel when excited with a multiharmonic signal, which lays the basis for the design of such signals. This is followed by a review of previous work in this area, after which a range of new periodic signals is defined. The minimization of the signal crest factors is then examined, along with the practical problems associated with their application. Practical results are presented which illustrate the application of the signals to testing a reference nonlinear circuit and a servo motor system

Keywords

Volterra series; frequency-domain analysis; harmonic analysis; nonlinear network analysis; nonlinear systems; realisation theory; signal sampling; signal synthesis; frequency-domain measurement; harmonic output; identification; minimization; multiharmonic signal; nonlinear Volterra kernels; periodic multisine signals; reference nonlinear circuit; search algorithm; servomotor system testing; signal crest factors; test signals; Circuit testing; Frequency domain analysis; Frequency measurement; Harmonic analysis; Kernel; Minimization; Nonlinear systems; Signal analysis; Signal design; System testing;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.492749

Filename

492749