Event-triggered Reduced-order H∞ Filter Synthesis of Discrete-time Uncertain Switched Systems

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It deals with event-triggered reduced-order H∞filter synthesis of discrete-time uncertain switched systems. It is considered norm-bounded uncertainties affecting the uncertain switched systems’ behavior. An event-triggered strategy is firstly specified to identify whether information of the uncertain switched system is transmitted or not. Then, a reduced-order H∞filter is designed ground on outputs of the proposed event-triggered strategy. And utilizing the merging switching signal technique, a switched filtering error system is modeled by the uncertain switched system and reduced-order H∞filter. Subsequently, some sufficient critera are presented to guarantee that the switched filtering error system is exponentially stable with a weighted H∞performance. A design method is also given for the reduced-order H∞filter. Finally, the validity and feasibility of this study is illustrated by a practical example.

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