Abstract
This paper proposes a high-gain observer design for nonlinear systems with delayed output measurements using time-varying gains. The proposed observer is endowed with an exponential stability guarantee and relies on the generalization of the Halanay-type inequalities. We establish that the estimated state and the adapted gain are exponentially bounded and prevent the oscillatory response of the estimates. The time-varying gain feature limits the constant high-gain values of the standard high-gain observer design to the minimum gain required to achieve stability. Furthermore, we derive an explicit relation between the maximum bound of the delay and the maximum gain parameter by using a Lyapunov-Krasovskii functional jointly with the time-varying Halanay inequality. Finally, a comparison with the standard high-gain observer is provided through numerical simulations to demonstrate the superiority of the proposed high-gain observer in rejecting the noise and reducing the peaking phenomena.
Original language | English (US) |
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Title of host publication | 2022 IEEE 61st Conference on Decision and Control, CDC 2022 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 235-240 |
Number of pages | 6 |
ISBN (Electronic) | 9781665467612 |
DOIs | |
State | Published - 2022 |
Event | 61st IEEE Conference on Decision and Control, CDC 2022 - Cancun, Mexico Duration: Dec 6 2022 → Dec 9 2022 |
Publication series
Name | Proceedings of the IEEE Conference on Decision and Control |
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Volume | 2022-December |
ISSN (Print) | 0743-1546 |
ISSN (Electronic) | 2576-2370 |
Conference
Conference | 61st IEEE Conference on Decision and Control, CDC 2022 |
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Country/Territory | Mexico |
City | Cancun |
Period | 12/6/22 → 12/9/22 |
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. Ania Adil thanks the Direction Générale de la Recherche Scientique et du Développement Technologique DGRSDT/MESRS-Algeria for the financial support.
Publisher Copyright:
© 2022 IEEE.
Keywords
- disturbance rejection
- High-gain observer
- nonlinear observer
- nonlinear triangular systems
- peaking attenuation
- time-varying gain
ASJC Scopus subject areas
- Control and Systems Engineering
- Modeling and Simulation
- Control and Optimization