Event-triggered observer design for output-sampled systems

被引：7
|
作者：
Song, Chengcheng [1 ,2 ]
Wang, Haoping [1 ]
Tian, Yang [1 ]
Zheng, Gang [3 ,4 ]
机构：
[1] Nanjing Univ Sci & Technol, Sch Automat, Nanjing 210094, Peoples R China
[2] Nanjing Inst Technol, Ind Ctr Sch Innovat & Entrepreneurship, Nanjing 211167, Peoples R China
[3] Foshan Univ, Sch Math & Big Data, Foshan 528000, Peoples R China
[4] Univ Lille, Cent Lille, CNRS, INRIA,UMR 9189,CRIStAL, F-59000 Lille, France
来源：
NONLINEAR ANALYSIS-HYBRID SYSTEMS | 2021年 / 43卷
基金：
中国国家自然科学基金;
关键词：
Observer; Nonlinear systems; Output-sampled systems; Event-triggered mechanism; Global exponential stability; CONTINUOUS-DISCRETE OBSERVER; CONTROL CO-DESIGN; NONLINEAR-SYSTEMS; STATE ESTIMATION; NETWORKS;
D O I：
10.1016/j.nahs.2021.101112
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 paper investigates event-triggered (ET) observers for output-sampled nonlinear state affine systems (<(x)over dot> = A(u)x + b(u)). In particular, the sampling of the system's output is aperiodic and decided by a designed system performance based event-triggered mechanism (ETM). Under this novel ETM, the global exponential stability of the observer system is guaranteed. The continuous state estimation is derived by using aperiodic sampled system output. The effectiveness of the proposed observer has been illustrated on a numerical example. For the special constant case of the considered system (A(u) = A), an LMI based ET observer is also proposed, and finally compared to the system performance based ET observer in a mobile cart system example. (C) 2021 Published by Elsevier Ltd.
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收藏
页数：12
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