一类网络控制系统的非脆弱H_∞滤波器设计  

A class of network control systems with non-fragile H_∞ filter design

作　　者：沈蒙 姜顺 潘丰 

机构地区：[1]江南大学轻工过程先进控制教育部重点实验室,江苏无锡214122

出　　处：《计算机工程与应用》2015年第21期58-63,194,共7页Computer Engineering and Applications

基　　金：国家自然科学基金(No.61273131);江苏省产学研联合创新资金资助项目(No.BY2013015-39)

摘　　要：针对带有时延与丢包补偿的网络化控制系统的非脆弱H$滤波问题,研究设计一个全维的H$滤波器对系统的待估信号进行估计,这里的滤波器参数含有范数有界不确定性。利用Lyapunov稳定性理论和线性矩阵不等式分析方法,得到了H_∞滤波器存在的充分条件,通过求解线性矩阵不等式得到非脆弱滤波器增益的参数表达式。通过仿真例子验证了非脆弱滤波器设计方法的有效性与优越性。The non-fragile H￥ filtering problem is studied for networked control systems with time delays and packet-dropout compensation. The main purpose of the paper is to design a full-order filter for the estimation task, where the filter parameters are allowed to have time-varying uncertainties. The Bernoulli switching sequence is introduced to characterize the time delay and packet-dropout compensation. By using Lyapunov stability theory and Linear Matrix Inequality（LMI）methods, a sufficient condition for the existence of the non-fragile filter is derived, and then the desired filter parameters are obtained by solving the LMIs. A numerical example is provided to demonstrate the effectiveness of the proposed design method.

关 键 词：时延 丢包 非脆弱H￥滤波器 范数有界不确定性 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]