Design of robust H_∞ filter for a class of delta operator-formulated uncertain system with filter gain variations
by Rui Quan Lin, Ren-chong Peng, Si-lian Chen
International Journal of Systems, Control and Communications (IJSCC), Vol. 1, No. 3, 2009

Abstract: With the consideration that the filter parameters are of additive norm-bounded variations, based on LMI, a design method of robust H_∞ filter for a class of delta operator-formulated uncertain system is studied in this paper. A numerical example is given to illustrate the effectiveness and the feasibility of the designed procedures. The results show that the designed filter ensure the closed-loop system asymptotically stable and the H_∞ norm of the transfer function matrix from the disturbance input to the estimative state error is bounded by the expected value, even if the parameters of the plant and the filter are of uncertainties.

Online publication date: Thu, 09-Apr-2009

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