On approximate pulse transfer functions

Author

Blachuta, Marian J.

Author_Institution

Dept. of Autom. Control, Silesian Tech. Univ., Gliwice, Poland

Volume

1

fYear

1997

fDate

10-12 Dec 1997

Firstpage

357

Abstract

In the paper a systematic approach to a class of approximations to the pulse transfer function of a system consisting of a zero-order hold and a linear continuous-time plant is presented. It is based on the asymptotic result of Astrom-Hagander-Sternby (1984) on zeros of sampled functions for high sampling rates, and on the bilinear transformation. Relationships with a δ-operator based approximation are found. Due to a particular structure of the approximations considered, robust control and identification are suggested as possible areas of their application. The results are illustrated by an example showing the superiority of new approximations over the known ones

Keywords

continuous time systems; function approximation; identification; linear systems; robust control; sampled data systems; transfer functions; approximation; continuous-time systems; identification; linear systems; pulse transfer functions; robust control; sampled data systems; sampled functions; zero-order hold; Automated highways; Ear; Polynomials; Robust control; Sampling methods; Steady-state; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control, 1997., Proceedings of the 36th IEEE Conference on

Conference_Location

San Diego, CA

ISSN

0191-2216

Print_ISBN

0-7803-4187-2

Type

conf

DOI

10.1109/CDC.1997.650647

Filename

650647