Robust finite frequency H∞ filtering for uncertain 2-D systems: The FM model case

  • Authors:
  • Xianwei Li;Huijun Gao

  • Affiliations:
  • -;-

  • Venue:
  • Automatica (Journal of IFAC)
  • Year:
  • 2013

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Abstract

This paper is concerned with the problem of robust finite frequency (FF) H"~ filtering for uncertain two-dimensional (2-D) discrete-time systems in the Fornasini-Marchesini local state-space (FM LSS) model with polytopic uncertain parameters. The goal of the paper is to design filters such that the FF H"~ norm of the filtering error system has a specified upper bound for all uncertainties. In light of a recently developed generalized bounded real lemma, a linear matrix inequality-based approach is proposed for robust FF H"~ filter analysis and design. It is demonstrated that the presented approach to robust FF H"~ filter design covers the latest standard H"~ filtering result. Moreover, it is shown that the existing results specialized for the Roesser model, when applied to the FM LSS model through a model transformation, are much more restrictive than the proposed results in the paper, further justifying this work.