存在数据丢包的无线网络控制系统的滤波器设计

摘要

The method of H∞ filtering for wireless network control systems was introduced to solve the randomly data packet dropout and noise interference and improve the accuracy of measure data.First of all,dropout of measurement data are modeled by a Bernoulli random sequence and the filtering error system are modeled as the discrete switching system with two sub-systems.Based on this,the sufficient condition for the existence of the H∞ filter and the method of solving the H∞ filter parameters are provided in terms of LMIs.Finally,an example is presented to illustrate the effectiveness of the proposed method.%针对无线网络控制系统测量数据存在丢失和噪音干扰的问题,研究了一类无线网络控制系统H∞滤波器设计方法,以提高系统测量数据的精度.首先,利用独立伯努利变量搭建数据丢包模型,并将滤波误差系统等效为具有两个子系统的离散切换系统;在此基础上,利用LMIs形式给出H∞滤波器存在的充分条件和滤波器参数求解的方法;最后通过仿真示例验证了所提算法的可行性.