Delta算子描述的离散系统鲁棒滤波  

Robust Filtering for Delta Operator-Formulated Discrete Time Systems

作　　者：张端金[1] 王忠勇[1] 吴捷[2] 

机构地区：[1]郑州大学信息工程学院,河南郑州450052 [2]华南理工大学电力学院,广东广州510640

出　　处：《系统工程与电子技术》2003年第1期71-73,106,共4页Systems Engineering and Electronics

基　　金：中国博士后科学基金资助课题 ( [2 0 0 0 ] 3 1) ;国家自然科学基金资助课题 ( 60 1740 2 5 )

摘　　要：研究基于Delta算子描述的线性不确定离散时间系统在稳态估计误差方差约束下的鲁棒滤波问题。目的是设计线性滤波器 ,使得闭环系统稳定 ,且闭环系统的稳态估计误差的方差满足预先给定的约束条件。基于Riccati方程或Riccati不等式方法 。Robust filtering for the delta operator formulated linear uncertain discrete time systems with error variance constraints is considered. The problem addressed is to design a robust filter such that the closed loop system is stable, and the variance of the steady state estimation error is not more than the prespecified value for all admissible uncertainties. The conditions for the existence of the desired filter are derived in terms of Riccati equations or Riccati inequalities, and the explicit expression of the robust filter is also obtained.

关 键 词：离散时间系统 DELTA算子 鲁棒滤波 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]