This paper investigates networked control systems subjected to packet loss over the channel between sensor and controller. The packet loss is modeled as an i.i.d. Bernoulli process. An improved switching approach is proposed to compensate packet loss. Based on this, the closed-loop system is modeled as a switching system with two modes, where the switching signal is determined by a switching condition. The stability analysis and controller design framework based on the switching condition is established. The results, which are derived by the switching system theory, are dependent on the packet loss probability. A numerical example has shown the usefulness of the proposed results.

本文研究了在传感器和控制器之间的通道上遭受数据包丢失的网络控制系统。数据包丢失被建模为一个iid Bernoulli过程。提出了一种改进的交换方法来补偿分组丢失。基于此，将闭环系统建模为具有两种模式的开关系统，其中开关信号由开关条件决定。建立了基于切换条件的稳定性分析和控制器设计框架。通过交换系统理论得出的结果取决于丢包率。数值例子表明了提出的结果的有用性。