Finite-time and fixed-time observer design: Implicit Lyapunov function approach

被引:173
作者
Lopez-Ramirez, Francisco [1 ]
Polyakov, Andrey [1 ,2 ]
Efimov, Denis [1 ]
Perruquetti, Wilfrid [1 ,2 ]
机构
[1] Non A INRIA LNE, Parc Sci Haute Borne 40,Ave Halley Bat A,Pk Plaza, F-59650 Villeneuve Dascq, France
[2] Ecole Cent Lille, CNRS, CRIStAL, UMR 9189, BP 48,Cite Sci, F-59651 Villeneuve Dascq, France
关键词
Finite-Time stability; Fixed-Time stability; Implicit Lyapunov function; Homogeneous systems; ROBUST; STABILITY; SYSTEMS; STABILIZATION; STATE; ISS;
D O I
10.1016/j.automatica.2017.09.007
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This work deals with the problem of finite-time and fixed-time observation of linear multiple input multiple output (MIMO) control systems. The proposed nonlinear dynamic observers guarantee convergence of the observer states to the original system state in a finite and in a fixed (defined a priori) time. Algorithms for the observers parameters tuning are also provided and a robustness analysis against input disturbances and measurement noises is carried out. The theoretical results are illustrated by numerical examples that consider both noisy and noise-free measurements and a comparison with a high-gain observer is included. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码:52 / 60
页数:9
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