DocumentCode
1195702
Title
Criteria for stability of zeros of sampled systems
Author
Ishitobi, Mitsuaki
Author_Institution
Dept. of Mech. Eng., Kumamoto Univ.
Volume
141
Issue
6
fYear
1994
fDate
11/1/1994 12:00:00 AM
Firstpage
396
Lastpage
402
Abstract
Simplified forms of criteria are presented for ensuring that all zeros of a discrete system are stable when a continuous-time and strictly proper plant is discretised by the use of a sampler and a zero-order holder. The Nyquist algorithm proposed by Fu and Dumont (1989) has been improved in the sense that a point of the Nyquist curve is obtained analytically. When a lowpass system is sampled, analytical forms of criteria without drawing the Nyquist curves have been also shown
Keywords
Nyquist criterion; Nyquist diagrams; poles and zeros; sampled data systems; Nyquist algorithm; Nyquist curve; discrete system; lowpass system; sample-and-hold systems; sampled systems; stability criteria; strictly proper plant; zero-order holder; zeros;
fLanguage
English
Journal_Title
Control Theory and Applications, IEE Proceedings -
Publisher
iet
ISSN
1350-2379
Type
jour
DOI
10.1049/ip-cta:19941534
Filename
331600
Link To Document