Fixed-order robust H∞ filter design for Markovian jump systems with uncertain switching probabilities

  • Authors:
  • Junlin Xiong;J. Lam

  • Affiliations:
  • Dept. of Mech. Eng., Univ. of Hong Kong, China;-

  • Venue:
  • IEEE Transactions on Signal Processing
  • Year:
  • 2006

Quantified Score

Hi-index 35.70

Visualization

Abstract

This paper discusses the fixed-order robust H∞ filtering problem for a class of Markovian jump linear systems with uncertain switching probabilities. The uncertainties under consideration are assumed to be norm-bounded in the system matrices and to be elementwise bounded in the mode transition rate matrix, respectively. First, a criterion based on linear matrix inequalities is provided for testing the H∞ filtering level of a filter over all the admissible uncertainties. Then, a sufficient condition for the existence of the fixed-order robust H∞ filters is established in terms of the solvability of a set of linear matrix inequalities with equality constraints. To determine the filter, a globally convergent algorithm involving convex optimization is suggested. Finally, a numerical example is used to illustrate that the developed theory is more effective than the existing results.