H∞ output tracking performance analysis and controller design for networked control systems with packet dropout

This paper studies the problems of H∞ output tracking performance analysis and controller design for networked control systems (NCSs) with time delay and packet dropout. By defining new Lyapunov function and using the discrete Jensen inequality, linear matrix inequality (LMI)-based H∞ output tracking performance analysis and controller design are presented. The adoption of the discrete Jensen inequalitymay reduce the computational complexity of the obtained results. The designed controllers can guarantee asymptotic tracking of prescribed reference outputs while rejecting disturbances. The simulation results illustrate the effectiveness of the proposed H∞ output tracking controller design.