Robust model reference adaptive control for uncertain time-delay systems

The problem of robust model reference adaptive control is considered for a class of linear time-delay systems with uncertainties. Based on Lyapunov stability theory, the problem of rubost tracking is transformed to the problem of stabilization of corresponding error system. The correspinding control stategy is adopted to design the delay dependent robust controller with respect to different characteristics of uncertainties. Combining with the method of LMI and adaptive parameter estimation, the output can practical track the output of the reference model by using the robust controller. A numerical example is given to demonstrate the validity of the design approach.