在传感器和控制器之间存在数据包丢失的情况下,被控对象的状态不完全能直接测得时,研究了一类被控对象为带有非线性摄动的网络化控制系统.把网络看成开关,网络正常通信时对应的子系统和网络丢包时对应的子系统之间相互切换形成一个切换系统,进而将这类系统建模为一类切换系统模型.基于驻留时间的思想,通过Lyapunov稳定性理论,建立了基于观测器的状态反馈控制器的网络化系统指数稳定性的充分条件,利用线性矩阵不等式(LM I,LinearMatrix Inequality)的可行解给出了观测器和控制器的参数化方法.数值例子验证了所得结果的有效性. Under the condition of data packet loss between sensor and controller, when the state of the controlled object can not be directly measured, a type of controlled object is studied as a networked control system with nonlinear perturbation. The network As a switch, the corresponding subsystem when the network is communicating normally and the corresponding subsystem when the network drops the packet form a switching system, and then the system is modeled as a switching system model. Based on the idea of ​​dwell time , The sufficient conditions for the exponential stability of networked systems based on observer-based state feedback controllers are established by Lyapunov stability theory. The observables and controllers are given by the feasible solutions of linear matrix inequalities (LM I) The numerical example verifies the validity of the results obtained.