New Results on Delay-Dependent Robust H-infinity Output Feedback Control for Uncertain System with Time-Varying Delay

摘要

The robust H-infinity output feedback controller design problem for uncertain system with time-varying delay in state is considered in this paper. An improved suu000ecient condition for the existence of robust H-infinity output feedback controller, which ensures the asymptotic stability and a prescribed Hinfinity performance level of the closed-loop system, is presented in terms of linear matrix inequality technique. A numerical example is given to illustrate the validity and the less conservation of the obtained method in this paper.