Dynamic output-feedback control of uncertain linear systems with constraints on H∞ and pole placement

The design problem of dynamic output-feedback controller is studied for a class of linear systems with norm boundary limited and parameters uncertain, which realizes pole constraints of closed-loop system and satisfies the gaven H-infinity performance index. Using the linear matrix inequality (LMI) approach, the solution of the coy-responding controller parameters is transformed to feasible solutions of some certain LMIs, and Matlab-LMI toolbox is used to solve solutions. A numerical example shows the validity of the proposed method.