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Design of impulsive adaptive observers for ...
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Document type :
Article dans une revue scientifique
DOI :
10.1002/acs.2506
Title :
Design of impulsive adaptive observers for improvement of persistency of excitation
Author(s) :
Efimov, Denis [Auteur] refId
Systèmes Non Linéaires et à Retards [SyNeR]
Non-Asymptotic estimation for online systems [NON-A]
Fradkov, Alexander [Auteur]
Institute of Mechanical Engineering Problems [St. Petersburg] [IPME]
Journal title :
International Journal of Adaptive Control and Signal Processing
Pages :
1--18
Publisher :
Wiley
Publication date :
2014-10-01
ISSN :
0890-6327
HAL domain(s) :
Informatique [cs]/Automatique
Sciences de l'ingénieur [physics]/Automatique / Robotique
English abstract : [en]
The development of adaptive observer techniques for nonlinear systems in the output canonical form is proposed applying additional impulsive feedback in the observer equations. The stability of new impulsive adaptive ...
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The development of adaptive observer techniques for nonlinear systems in the output canonical form is proposed applying additional impulsive feedback in the observer equations. The stability of new impulsive adaptive observer is investigated. It is shown that under some conditions the proposed impulsive feedback can improve the rate of the observer convergence or relax the requirement on persistency of excitation, which is usually introduced to ensure convergence of the parameter estimates. The proposed feasibility conditions include positivity of dwell time (boundedness of impulse frequency) and solvability of some Lyapunov-like matrix inequalities. The results are illustrated by simulation for three examples (including a single link flexible joint robot example).Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Collections :
  • Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL) - UMR 9189
Source :
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