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Implementation of FIR control for H∞ output feedback stabilization of linear systems

In this paper, finite impulse response (FIR) control is addressed for H∞ output feedback stabilization of linear systems. The problem we deal with is the construction of an output feedback controller with a certain finite impulse response structure such that the resulting closed-loop system is asymptotically stable and a prescribed H∞ norm bound constraint is guaranteed. Some solvability conditions are suggested in this paper. Sufficient conditions are derived to obtain a suboptimal solution of the H∞ FIR control problem via convex optimization. Also, an equivalent condition for the existence of H∞ FIR control is presented in the set of linear matrix inequalities and a reciprocal matrices equality constraint. An effective computational algorithm involving linear matrix inequalities is suggested to solve a concave minimization problem characterizing a local optimal solution of the H∞ FIR control problem. Numerical examples demonstrate the validity of the proposed H∞ FIR control and the numerical efficiency of the proposed algorithm for FIR control.