Prescribed-Time High-Gain Nonlinear Observer Design for Triangular Systems

Ania Adil, Ibrahima N'Doye, Abdelghani Hamaz, Ali Zemouche, Taous Meriem Laleg-Kirati

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

This paper proposes a prescribed-time varying high gain observer for a class of nonlinear systems. The fixed time convergence of the observer within a predefined time is shown through a Lyapunov differential inequality and a state transformation that involves a scaling function. The effectiveness of the proposed observer is illustrated through two numerical examples. Furthermore, a comparison with the standard high-gain observer and the tuning gain parameter of the scaling function is provided to demonstrate the superiority of the proposed prescribed-time observer of reducing the peaking phenomena and enhancing the estimation convergence error, respectively.

Original languageEnglish (US)
Title of host publication2021 9th International Conference on Systems and Control, ICSC 2021
EditorsDriss Mehdi, Mondher Farza, Mohammed M'Saad, Abdelouahab Aitouche
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages252-257
Number of pages6
ISBN (Electronic)9781665407823
DOIs
StatePublished - 2021
Event9th International Conference on Systems and Control, ICSC 2021 - Caen, France
Duration: Nov 24 2021Nov 26 2021

Publication series

Name2021 9th International Conference on Systems and Control, ICSC 2021

Conference

Conference9th International Conference on Systems and Control, ICSC 2021
Country/TerritoryFrance
CityCaen
Period11/24/2111/26/21

Bibliographical note

Funding Information:
This work has been supported by the King Abdullah University of Science and Technology (KAUST), Base Research Fund (BAS/1/1627-01-01) to Taous-Meriem Laleg-Kirati. A. Zemouche thanks the IUT Henri Poincaré de Longwy for the partial support of this work.

Publisher Copyright:
© 2021 IEEE.

Keywords

  • fixed-time stability
  • high-gain observer
  • nonlinear triangular systems
  • Prescribed-time convergence
  • time-varying scaling function

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Control and Optimization

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