网络化离散时滞系统的鲁棒输出反馈控制

研究网络环境下凸多面体离散时滞系统的鲁棒输出反馈控制问题．假设控制器与驱动器之间通过不可靠的通讯网络相连接．利用相互独立的随机变量刻画多个通信信道中的数据丢失现象．首先，基于参数依赖的Lya—punov—Krasovskii泛函方法分析闭环系统的鲁棒随机稳定性；然后，将参数依赖的鲁棒静态输出反馈控制器的设计问题归结为求解线性不等式组的凸优化问题．最后，用仿真例子说明所给方法的有效性．

Robust Output-feedback Control for Networked Discrete Time-delay Systems

In this paper, the robust output-feedback control problem is considered for polytopic discretetime systems with delay in network environments. It is assumed that there exist unreliable communication links between the controller and the actuator. Multiple independent random variables are adopted to characterize the data-missing phenomenon in multicommunication channels. The robust stochastic stability is first analyzed based on a parameter-dependent Lyapunov-Krasovskii functional. Then, the problem of the parameter-dependent robust output-feedback controller design is formulated as the convex optimization problem of solving a set of linear matrix inequalities. Finally, a simulation example is provided to show the effectiveness of the proposed method.