Finite time estimation for time-varying systems with delay in the measurements

被引：13
|
作者：
Ahmed, Saeed [1 ]
Malisoff, Michael [2 ]
Mazenc, Frederic [3 ]
机构：
[1] Bilkent Univ, Dept Elect & Elect Engn, TR-06800 Ankara, Turkey
[2] Louisiana State Univ, Dept Math, Baton Rouge, LA 70803 USA
[3] Univ Paris Sud, Lab Signaux & Syst, EPI DISCO Inria Saclay, CNRS,Cent Supelec, 3 Rue Joliot Curie, F-91192 Gif Sur Yvette, France
来源：
SYSTEMS & CONTROL LETTERS | 2019年 / 133卷
基金：
美国国家科学基金会;
关键词：
Observer; Stability; Time-varying; NONLINEAR-SYSTEMS; OUTPUT-FEEDBACK; COMPENSATION; OBSERVERS; INPUT;
D O I：
10.1016/j.sysconle.2019.104551
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
We build finite time observers for time-varying nonlinear systems with delays in the outputs, using a dynamic extension that computes fundamental matrices. Our observers achieve finite time convergence when no disturbances are present. When disturbances are present, we provide approximate values for the solutions, which lead to an upper bound on the approximation error after a suitable finite time. We illustrate our work in a class of systems arising in the study of vibrating membranes, where time-varying coefficients can be used to represent intermittent measurements. (C) 2019 Elsevier B.V. All rights reserved.
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页数：9
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