On the equivalence of z-domain and s-domain models in system identification

Author

Kollar, Istvan ; Franklin, Gene ; Pintelon, Rik

Author_Institution

Dept. of Meas. & Instrum. Eng., Tech. Univ. Budapest, Hungary

Volume

1

fYear

1996

fDate

1996

Firstpage

14

Abstract

The step-invariant or ZOH-transformation of discrete-time transfer function models to continuous time is discussed. It is shown that negative real poles which are commonly considered as not transformable, can be transformed to poles on the aliasing margin. Thus a generalized equivalent can be determined, whose ZOH-transform is the original system. Numerical algorithms are also discussed, and examples are shown

Keywords

continuous time systems; discrete time systems; identification; linear systems; poles and zeros; transfer functions; ZOH-transformation; aliasing margin; continuous time; discrete-time transfer function models; generalized equivalent; negative real poles; numerical algorithms; s-domain models; step-invariant transformation; system identification; z-domain models; Discrete transforms; Frequency domain analysis; Information systems; Instruments; Sampling methods; Signal processing; Strips; System identification; Time measurement; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 1996. IMTC-96. Conference Proceedings. Quality Measurements: The Indispensable Bridge between Theory and Reality., IEEE

Conference_Location

Brussels

Print_ISBN

0-7803-3312-8

Type

conf

DOI

10.1109/IMTC.1996.507191

Filename

507191