On functional observers for linear systems with unknown inputs and HOSM differentiators

被引:12
|
作者
Tulio Angulo, Marco [1 ]
Moreno, Jaime A. [3 ]
Fridman, Leonid [2 ]
机构
[1] UAQ, Fac Ingn, Mexico City, DF, Mexico
[2] Univ Nacl Autonoma Mexico, Dept Ingn Control & Robot, Mexico City, DF, Mexico
[3] Univ Nacl Autonoma Mexico, Inst Ingn, Mexico City, DF, Mexico
关键词
SLIDING MODE OBSERVERS; DESIGN;
D O I
10.1016/j.jfranklin.2013.12.001
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The problem of constructing functional observers for linear systems with unknown inputs is considered. Necessary and sufficient conditions for the existence of a proper observer (without differentiations) are revisited. A simple and explicit form of a functional observer is presented. It is shown that when such observer is not proper, it is still possible to use the High-Order Sliding Mode differentiator to implement it. Nevertheless, in such case, additional conditions on the system and the unknown input are required. (C) 2013 The Franklin Institute. Published by Elsevier Ltd. All rights reserved.
引用
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页码:1982 / 1994
页数:13
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