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This paper is concerned with the problem of observer design for a class of time-delay nonlinear systems with parameter uncertainties. The purpose of this problem is to design the gain-scheduled state observers such that, for the addressed nonlinearities as well as admissible exponentially stable, independently of the time delay. The nonlinearities are assumed to satisfy the global Lipschitz conditions, and the parameter uncertainties are allowed to be time-varying, unstructured and norm-bounded. An effective matrix inequality methodology is developed to solve the proposed problem. We derive the conditions for the existence of the desired robust nonlinear observers, and then characterize the analytical expression of these observers. Two numerical examples demonstrate the validity and applicability of the present approach.
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Tom
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27--39
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Bibliogr. 30 poz.
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- Automatic Control Laboratory, Faculty of Electical Engineering, Ruhr University, D-44780 Bochum, Germany.
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Bibliografia
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bwmeta1.element.baztech-article-BPW1-0009-0003