關鍵字查詢 | 類別:期刊論文 | | 關鍵字:Minimum-phase criteria for sampled systems via symbolic approach

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1 86/1 電機系 許陳鑑 副教授 期刊論文 發佈 Minimum-phase criteria for sampled systems via symbolic approach , [86-1] :Minimum-phase criteria for sampled systems via symbolic approach期刊論文Minimum-phase criteria for sampled systems via symbolic approachWang, Chi-hsu; Wang, Wei-yen; Hsu, Chen-chien淡江大學電機工程學系Taylor & FrancisInternational Journal of Systems Science 28(8), pp.767-775In 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 effec
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