Delay-dependent stability for uncertain discrete-time systems with time-varying delay by a piecewise analysis approach
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摘要: 研究了一類時變時滯不確定離散系統的時滯相關穩定性問題.不確定項具有線性分式形式.基于分段分析方法,將時滯區間分成若干子區間.通過構造新的Lyapunov泛函,得到保守性較小的時滯相關穩定性條件,所得結果完全由線性矩陣不等式形式給出.數值算例表明了該方法的有效性.
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關鍵詞:
- 時變時滯 /
- 時滯相關 /
- 漸近穩定 /
- 線性矩陣不等式(LMI)
Abstract: The stability of uncertain discrete-time systems with time-varying delay is studied. The uncertain parameters are in linear fractional form. Based on a piecewise analysis approach, the time-delay interval is divided into several subsections. By defining a novel Lyapunov functional, the less conservative stability criteria are proposed in terms of linear matrix inequalities. Numerical examples are given to show that the results are effective. -

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