STABLE ZEROS OF SAMPLED LOW-PASS SYSTEMS

Authors
Citation
M. Ishitobi, STABLE ZEROS OF SAMPLED LOW-PASS SYSTEMS, International Journal of Control, 57(6), 1993, pp. 1485-1498
Citations number
11
Categorie Soggetti
Controlo Theory & Cybernetics","Computer Applications & Cybernetics
ISSN journal
00207179
Volume
57
Issue
6
Year of publication
1993
Pages
1485 - 1498
Database
ISI
SICI code
0020-7179(1993)57:6<1485:SZOSLS>2.0.ZU;2-Q
Abstract
This paper studies analytical forms of criteria for ensuring that all zeros of a discrete system are stable when a continuous-time, strictly proper and low-pass plant is sampled by use of a zero order hold. Nec essary and sufficient conditions for stable zeros of a sampled system are developed. They are related to coefficients of a continuous-time t ransfer function and to a sampling period. This paper also presents su fficient conditions which are expressed in terms of coefficients of a continuous-time transfer function.