H∞ Robust Optimal Control of Variable Period NCS with Uncertain Delay and Packet Loss

For a class of network control system with uncertain time delay, packet loss, variable sampling period and the external disturbance. Using LMI and Lyapunov method to research robust H
∞
optimal control based on dynamic output feedback. Giving sufficient conditions for the system’s progressive stability and the existence of dynamic output feedback controller. Finally, the design method of optimal H
∞
control rate is given by solving optimization problem, and using LMI toolbox to verify the effectiveness of the proposed method.