Yu Yao and Rui Zhang. Improved Parameter-dependent H∞ Filtering for Polytopic Delta Operator Systems. International Journal of Automation and Computing, vol. 6, no. 2, pp. 171-176, 2009. DOI: 10.1007/s11633-009-0171-y
Citation: Yu Yao and Rui Zhang. Improved Parameter-dependent H∞ Filtering for Polytopic Delta Operator Systems. International Journal of Automation and Computing, vol. 6, no. 2, pp. 171-176, 2009. DOI: 10.1007/s11633-009-0171-y

Improved Parameter-dependent H Filtering for Polytopic Delta Operator Systems

  • The problem of H filtering for polytopic Delta operator linear systems is investigated. An improved H performance criterion is presented based on the bounded real lemma. Upon the improved performance criterion, a sufficient condition for the existence of parameter-dependent H filtering is derived in terms of linear matrix inequalities. The designed filter can be obtained from the solution of a convex optimization problem. The filter design makes full use of the parameter-dependent approach, which leads to a less conservative result than conventional design methods. A numerical example is given to illustrate the effectiveness of the proposed approach.
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