State feedback control for networked control system with time-delay and uncertainties
不确定时滞网络控制系统的状态反馈控制

In the process of signal transmission in network, the stability of the system is affected by uncertainties, timedelay, data packet dropout, and sequence errors. This paper is concerned with the state feedback control of networked control systems(NCS) under these nonideal network conditions. To closely model the real system, a constant time-delay is introduced in the continuous-time system model. A sufficient condition of robust stability for NCS is derived by using an improved Lyapunov-Krasovskii functional. Based on this condition a controller design method is proposed by using linear matrix inequalities(LMI). The corresponding coefficients are obtained from the LMI by using an iterative algorithm. Simulation results of an example with MATLAB show the effectiveness and advantages of the proposed method.