带有未知输入的降阶观测器的设计  

Design of Reduced-order Observers for Linear Systems with Unknown Input

作　　者：宋金来[1] 许可康[2] 

机构地区：[1]航天时代仪器公司,北京100854 [2]中国科学院数学与系统科学研究院系统科学研究所,北京100080

出　　处：《数学的实践与认识》2003年第9期80-84,共5页Mathematics in Practice and Theory

摘　　要：本文讨论了带未知输入的线性时不变系统的状态重构问题 .在一种特定的坐标变换下 ,给定了该系统存在降阶观测器的充分必要条件 .与已有结果相比 ,该条件比相应的文献所给出的条件弱 ,并且本文的条件是系统本身的 。In this paper, the states reconstruction problem was discussed for linear time\|invariable systemwith unknown inputs. A sufficient and necessary condition for system existing the reduced\|order observers was given in a specific coordinate transform. Compared with other known results, the condition depended on system itself, especially, which was more weak than others. So it was further reasonable.

关 键 词：未知输入 降阶观测器 线性时不变系统 状态重构 存在性 

分 类 号：O231[理学—运筹学与控制论]