Non-fragile state feedback H-infinity control for discrete-time systems with quantized signals  

作　　者：Weiwei CHE Guanghong YANG 

机构地区：[1]Key Laboratory of Integrated Automation for the Process Industry, Ministry of Education, College of Information Science and Engineering, Northeastern University, Shenyang Liaoning 110004, China

出　　处：《控制理论与应用（英文版）》2009年第1期63-67,共5页

基　　金：supported by the Funds for Creative Research Groups of China (No.60521003);the State Key Program of National Natural Science of China (No.60534010);the Funds of National Science of China (No.60674021);the Funds of PhD program of MOE,China(No.20060145019);the 111 Project (B08015)

摘　　要：This paper presents a study on the problem of non-fragile state feedback H-infinity controller design for linear discrete-time systems with quantized signals. The quantizers considered here are dynamic and time-varying. With the consideration of controller gain variations and quantized signals at the same time, a new non-fragile H-infinity control strategy is proposed with updating quantizer＇s parameters, such that the quantized closed-loop system is asymptotically stable and with a prescribed H-infinity performance bound. An example is presented to illustrate the effectiveness of the proposed control strategy.This paper presents a study on the problem of non-fragile state feedback H-infinity controller design for linear discrete-time systems with quantized signals. The quantizers considered here are dynamic and time-varying. With the consideration of controller gain variations and quantized signals at the same time, a new non-fragile H-infinity control strategy is proposed with updating quantizer＇s parameters, such that the quantized closed-loop system is asymptotically stable and with a prescribed H-infinity performance bound. An example is presented to illustrate the effectiveness of the proposed control strategy.

关 键 词：Linear systems NON-FRAGILE Dynamic quantizer H-infinity control LMI 

分 类 号：TP271.8[自动化与计算机技术—检测技术与自动化装置] O231[自动化与计算机技术—控制科学与工程]