Stable zeros of a discrete system obtained by sampling a continuous-time plant with a time delay
作者:
MITSUAKI ISHITOBI,
期刊:
International Journal of Control
(Taylor Available online 1994)
卷期:
Volume 59,
issue 4
页码: 1053-1062
ISSN:0020-7179
年代: 1994
DOI:10.1080/00207179408923117
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Criteria are presented that ensure that all zeros of a discrete system are inside the unit disc when a continuous-time plant with a time delay is sampled by use of a zero-order hold. A necessary and sufficient condition developed in this paper is a natural extension of the results for the case with no time delays. This paper also derives sufficient conditions for stable discrete zeros in terms of the coefficients of a continuous-time transfer function. They guarantee that all the sampled zeros stay inside the unit disc as long as the sampling period is selected to satisfy a simple relation.
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