Using switching technique and Lyapunov function method,a continuous state feedback controller is built to ensure the asymptotically stable closed-loop system for all allowable uncertainties,with the switching law designed to implement the global asymptotic stability of uncertain fuzzy switched systems.

The stability domain of both systems proposed are studied separately,and the stability domain of the nonlinear circulant switched system in accordance to arbitrary and certain switching laws is given in terms of the eigenvalues of circulant system mat.

Assuming that there is a limited number of candidate controllers with known gain matrices and using the common Lyapunov function,a sufficient condition is derived to hybrid guaranteed cost control with quadratic stability under arbitrary switching laws.

Suppose that there exist finite candidate static-state feedback controllers with known gain matrix,and the systems are unstable using a single controller, in terms of the condition of convex combination and the design of switching laws, a sufficient condition for H ∞ robust stabilization of the system was derived through switching among the controllers.

Based on single Lyapunov function method,a conceptual design is given to the hybrid output–feedback controllers switching laws such that the corresponding closed-loop system is globally asym.

In order to improve the dynamic performance of the networked control system due to time-delay,suppose there exist finite candidate state feedback controllers with known controller gain matrices and none of the controllers can make the system stabilization,switching laws were d.

On the other hand,switch is used in control laws transformation,because longitudinal structure and parameters on land are different from those in air.