Delta算子描述系统的非脆弱H_∞滤波器设计  

Non-fragile H-infinity filter design for Delta operator system

作　　者：王武[1] 郭祥贵[1] 冉华军[1] 杨富文[1] 

机构地区：[1]福州大学电气工程与自动化学院,福建福州350108

出　　处：《控制理论与应用》2008年第6期1072-1076,共5页Control Theory & Applications

基　　金：国家自然科学基金资助项目(60474049;60604027);福建省自然科学基金资助项目(A0510009).

摘　　要：研究了一类Delta算子描述的线性系统非脆弱H∞滤波问题.所设计的滤波器具有乘性的滤波器增益变化.采用线性矩阵不等式方法,给出H∞滤波器存在的充分条件,所设计的滤波器在一定的乘性参数变化情况下,仍能保证滤波误差系统渐近稳定,且具有一定扰动抑制性能.数值仿真例子说明了设计方法的有效性.The non-fragile H-infinity filtering for a class of linear systems described by Delta operator is investigated. The designed filter is assumed to be with multiplicative filter gain variations. The sufficient condition is developed for the existence of the non-fragile filter design in terms of linear matrix inequality（LMI）, and the obtained non-fragile H-infinity filter guarantees the filter error system of asymptotic stability and prescribed disturbance attenuation performance for a restricted variation of filter gain. The numerical example illustrates the feasibility and advantage of the proposed designs.

关 键 词：Delta算子描述系统 非脆弱 H∞滤波 乘性增益变化 线性矩阵不等式 

分 类 号：TN713[电子电信—电路与系统]