Abstract

The problem of decentralized robust filtering for a class of interconnected nonlinear systems with norm-bounded parametric uncertainties and unknown stat-delays and nonlinearities is investigated. A version of the strict bounded-real lemma for a class of linear tim∼varying systems with unknown delays is first established. Then, it is proven that a set of decentralized robust filters can be designed which guarantee both robust stability and a prescribed H∞-performance for all admnissible uncertainties and unknown state-delays.

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