This paper studies the optimal output tracking control and stabilization for networked control systems with packet losses via output feedback control. Both finite-horizon and infinite-horizon cases are considered. For the finite-horizon case, the authors introduce an augmented system according to the state variable and the reference trajectory for the first time. Based on a set of difference Riccati equations, an optimal output feedback tracking controller is proposed by applying the stochastic maximum principle. And an optimal estimator is presented. For the infinite-horizon case, a necessary and sufficient condition for the stabilization of the system is provided. And an optimal output feedback stabilizing tracking controller is obtained by establishing a set of algebraic Riccati equations. Finally, numerical examples are given to verify the proposed results.

本文通过输出反馈控制研究了丢包的网络控制系统的最优输出跟踪控制和稳定性。同时考虑了有限水平和无限水平情况。对于有限水平的情况，作者首次根据状态变量和参考轨迹引入了增强系统。基于一组差分Riccati方程，提出了一种基于随机最大值原理的最优输出反馈跟踪控制器。并给出了一个最优估计量。对于无限水平的情况，提供了稳定系统的必要和充分条件。通过建立一组代数Riccati方程，获得了最优的输出反馈稳定跟踪控制器。最后，