引用本文:孙丽瑛, 程兆林, 王玉振.非方广义系统的未知输入有限时间观测器设计[J].控制理论与应用,2006,23(6):986~990.[点击复制]
SUN Li-ying, CHENG Zhao-lin, WANG Yu-zhen.Unknown input observer design for nonsquare descriptor systems in finite time[J].Control Theory and Technology,2006,23(6):986~990.[点击复制]
非方广义系统的未知输入有限时间观测器设计
Unknown input observer design for nonsquare descriptor systems in finite time
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DOI编号  
  2006,23(6):986-990
中文关键词  非方广义系统  未知输入估计  有限时间观测器
英文关键词  nonsquare descriptor systems  unknown input estimation  finite time observer
基金项目  
作者单位
孙丽瑛, 程兆林, 王玉振 山东大学控制科学与工程学院, 山东济南250061
济南大学理学院, 山东济南250022
山东大学数学与系统科学学院, 山东济南250100 
中文摘要
      研究了含未知输入的非方广义系统的有限时间输入解耦观测器设计问题, 在一定条件下基于非方广义系统的结构特征, 引入一个输入–状态对的非奇异转换, 把含未知输入的非方广义系统等价地转化为输入已知的正常状态空间系统. 用传统的设计正常状态空间系统观测器的方法去构造含未知输入的非方广义系统的未知输入观测器, 并给出了观测器存在的充分条件, 由此得出了有限时间观测器的设计步骤.
英文摘要
      The problem of input decoupled observer design in finite time for nonsquare descriptor systems with unknown input is investigated. Based on the constructive characteristics of the systems, an input-state pair of descriptor systems is introduced, which transforms the nonsquare descriptor system with unknown input into a standard state-space system where the input is known. It provides a new and simple method to construct unknown input observer for nonsquare descriptor system by using some traditional methods for standard state-space systems. The sufficient conditions for the existence of unknown input observer for nonsquare descriptor system are also given. From these, a unified design procedure for the finite time observer is derived.