Minimum-phase criteria for sampled systems via symbolic approach

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Title:	Minimum-phase criteria for sampled systems via symbolic approach
Authors:	Wang, Chi-hsu;Wang, Wei-yen;Hsu, Chen-chien
Contributors:	淡江大學電機工程學系
Date:	1997-08
Issue Date:	2011-10-15 00:47:57 (UTC+8)
Publisher:	Taylor & Francis
Abstract:	In this paper, we propose a symbolic approach to determine the sampling-time range which guarantees minimum-phase behaviours for a sampled system with a zero-order hold. By using Maple, a symbolic manipulation package, the symbolic transfer function of the sampled system, which contains sampling time T as an independent variable, can be easily obtained. We then adopt the critical stability constraints to determine the sampling-time range which ensures that the sampled system has only stable zeros. In comparison with existing methods, the proposed approach in this note has less restrictions on the continuous plant and is very easy to implement in any symbolic manipulation package. Several examples are illustrated to show the effectiveness of this approach.
Relation:	International Journal of Systems Science 28(8), pp.767-775
DOI:	10.1080/00207729708929437
Appears in Collections:	[Graduate Institute & Department of Electrical Engineering] Journal Article

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