New Finite-Time Observers design for a Discrete-Time Switched Linear System

被引：0

作者：

Dadi, Leila ^{[1
]}

Thach Ngoc Dinh ^{[2
]}

Raissi, Tarek ^{[2
]}

Ethabet, Haifa ^{[1
]}

Aoun, Mohamed ^{[1
]}

机构：

[1] Univ Gabes, Natl Engn Sch Gabes, Res Lab Modeling Anal & Control Syst MACS LR16ES2, Gabes 6029, Tunisia

[2] Cedr Lab, Conservatoire Natl Arts & Metiers CNAM, 292 Rue St Martin, F-75141 Paris 03, France

来源：

IFAC PAPERSONLINE | 2022年 / 55卷 / 40期

关键词：

Exact estimation; approximate estimation; finite-time observers; discrete-time; switched linear systems; STATE ESTIMATION;

D O I：

10.1016/j.ifacol.2023.01.051

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this work, we consider a discrete-time switched linear system. A novel approach is introduced to estimate its state in a finite fixed time which can be arbitrarily chosen and is independent of the initial state. For cases where the additive disturbance and measurement noise are known, we provide an exact estimation. Otherwise, a finite-time interval observer is designed. The crucial idea is based on using past values of the input and output of the studied system and a minimal dwell time condition. Simulation results are provided to illustrate the effectiveness of the proposed techniques in different scenarios of finite time choices. Copyright (c) 2022 The Authors. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0/)

引用

页码：73 / 78

页数：6

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