Hybrid dead-beat observers for a class of nonlinear systems

被引：13

作者：

Karafyllis, Iasson ^{[1
]}

Jiang, Zhong-Ping ^{[2
]}

机构：

[1] Tech Univ Crete, Dept Environm Eng, Khania 73100, Greece

[2] New York Univ, Polytech Inst, Metrotech Ctr 6, Dept Elect & Comp Eng, Brooklyn, NY 11201 USA

来源：

SYSTEMS & CONTROL LETTERS | 2011年 / 60卷 / 08期

基金：

美国国家科学基金会;

关键词：

Observer design; Nonlinear systems; Hybrid observers; FINITE-TIME OBSERVERS; OUTPUT-FEEDBACK; WIDE CLASS; HIGH-GAIN; DESIGN; DIFFERENTIATION; STATE;

D O I：

10.1016/j.sysconle.2011.04.020

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 studies both the full order and the reduced order dead-beat observer problem for a class of nonlinear systems, linear in the unmeasured states. A novel hybrid observer design strategy is proposed, with the help of the notion of strong observability in finite time. The proposed methodology is applied for the estimation of the frequency of a sinusoidal signal. The results show that accurate estimation can be provided even if the signal is corrupted by high frequency noise. A brief discussion of the robustness properties of the proposed observer with respect to measurement errors is also provided. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：608 / 617

页数：10

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