Performance Limitations in Tracking of Linear System with Measurement Noise

作     者：ZHAN Xisheng1,2,GUAN Zhihong1,XIAO Jianwen1,WANG Yanwu1 1.Department of Control Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,P.R.China2.Department of Control Science and Engineering,Hubei Normal University,Huangshi 435002,P.R.China 

会议名称：《第二十九届中国控制会议》

会议日期：2010年

学科分类：11[军事学] 0810[工学-信息与通信工程] 0711[理学-系统科学] 1105[军事学-军队指挥学] 07[理学] 08[工学] 081002[工学-信号与信息处理] 081101[工学-控制理论与控制工程] 110503[军事学-军事通信学] 0811[工学-控制科学与工程] 071102[理学-系统分析与集成] 081103[工学-系统工程] 

基　　金：supported by the National Natural Science Foundation of China under Grants 60834002,60704035,60973039 the Doctoral Foundation of Ministry of Education of China under Grant 20090142110039 

关 键 词：Optimal Tracking Performance Limitation Two-Parameter Control Measurement Noise 

摘      要：An optimal performance issues about linear time-invariant（LTI）systems tracking stochastic signal with measurement noise is proposed in this *** integral square error criterion is used as a measure for the system tracking error between the output of a given plant and reference signals,the spectral factorization is applied to obtain optimal solution of the system *** is shown that nonminimum phase zeros and unstable poles have a negative effect on a feedback system’s ability to reduce the system error with measurement noise;simultaneously,the performance limitation becomes worse for an unstable,nonminimum phase plant because of measurement ***,the measurement noise don’t affect performance limitation for an stable nonminimum phase plant.