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Type: Artigo de periódico
Title: Robust H-2 switched filter design for discrete-time polytopic linear parameter-varying systems
Author: Deaecto, GS
Geromel, JC
Daafouz, J
Abstract: This paper deals with a robust H-2 filter design problem for discrete-time polytopic linear parameter-varying systems. The novelty is to design a set of full order filters and a switching rule to orchestrate them in order to assure an H-2 performance index of the estimation error. The switched linear filter does not require the online measurement of the uncertain time-varying parameter which, in a great part of practical applications, is not available. The conditions are based on Lyapunov-Metzler inequalities with a special subclass of Metzler matrices. The proposed switched filter outperforms the ones available in the literature to date as far as the H-2 norm of the estimation error is taken into account. The main theoretical implications of the switched filtering methodology in the framework of linear time-invariant uncertain systems and linear parameter-varying systems are discussed and illustrated by academical examples. (C) 2013 Elsevier B.V. All rights reserved.
Subject: Discrete-time switched systems
Polytopic LPV systems
H-2 filtering
Robust filtering
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Identifier DOI: 10.1016/j.sigpro.2013.10.012
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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