Guaranteed performance control for output feedback networked control systems with uncertain time-delay

The problem of guaranteed performance control for a class of dynamic output feedback networked control systems (NCS) with uncertain time-delay is studied in this paper. For the case of uncertain time-delay less than or equal to a sampling period, by using the Lyapunov theory and linear matrix inequality approach, the condition of the existence of guaranteed performance law for dynamic output feedback networked control systems is derived, the design method of dynamic output feedback guaranteed performance control law and the optimal performance index of the NCS are also presented. The parameters of optimal guaranteed performance control law can be solved by the function 'mincx' of the MATLAB LMI toolbox, the guaranteed performance control law and the optimal performance index for the system can thus be obtained. Finally, a simulation example is given to validate the design method and to demonstrate the feasibility of the results.