基于事件触发的网络化H_∞滤波

Networked H_∞ Filtering Based on Event-Triggered Scheme

文章研究在网络环境下线性系统的H∞滤波问题.考虑到网络通讯带宽的限制,提出一个新的离散事件触发传输方案来避免传输一些冗余(不必要)信息.然后,利用Lyapunov泛函方法,以线性矩阵不等式(LMI)的形式给出系统在网络环境下H∞滤波器存在的充分条件.同时也给出滤波器和事件触发方案的联合设计方法.最后通过一个数字例子说明所提方法的有效性.

To studies H∞ filtering problem for linear systems in network environment. Considering the limitations of network communication bandwidth, a new discrete event-triggered communication scheme is proposed to avoid the transmission of redundant（unnecessary） information. By Lyapunov functional approach,a sufficient condition for the existence of the networked H∞filter is established in terms of linear matrix inequalities for the systems. Moreover,a co-design method of the filter and event-triggered communication scheme is provided. Finally,a numerical example is given to show the effectiveness of the proposed approach.