Hybrid dead-beat observers for a class of nonlinear systems

Iasson Karafyllis, Zhong-Ping Jiang

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish (US)
Pages (from-to)608-617
Number of pages10
JournalSystems and Control Letters
Volume60
Issue number8
DOIs
StatePublished - Aug 2011

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Nonlinear systems
Observability
Measurement errors

Keywords

  • Hybrid observers
  • Nonlinear systems
  • Observer design

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Computer Science(all)
  • Mechanical Engineering

Cite this

Hybrid dead-beat observers for a class of nonlinear systems. / Karafyllis, Iasson; Jiang, Zhong-Ping.

In: Systems and Control Letters, Vol. 60, No. 8, 08.2011, p. 608-617.

Research output: Contribution to journalArticle

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