Hysteresis-based switching observers for linear systems using quadratic boundedness

被引:7
作者
Alessandri, Angelo [1 ]
Sanfelice, Ricardo G. G. [2 ]
机构
[1] Univ Genoa DIME, Via Opera Pia 15, I-16145 Genoa, Italy
[2] Univ Calif Santa Cruz, Dept Elect & Comp Engn, Santa Cruz, CA 95064 USA
基金
美国国家科学基金会;
关键词
Hybrid observers; Hysteresis; Quadratic boundedness; HIGH-GAIN OBSERVERS; STATE ESTIMATION; INVARIANCE;
D O I
10.1016/j.automatica.2021.109982
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Switched-gain observers are investigated for the purpose of estimating the state of linear systems affected by bounded noises. Under mild assumptions, hybrid observers with switching gains are proposed and provided with stability analysis based on quadratic boundedness for the estimation error. Such observers are designed by solving optimization problems aimed at minimizing upper bounds on the estimation error in such a way as to get the smallest invariant set. The effectiveness of the proposed approach is evaluated with some numerical case studies. (c) 2021 Elsevier Ltd. All rights reserved.
引用
收藏
页数:9
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