A novel observer based adaptive output feedback approach for control of uncertain systems

Naira Hovakimyan, F. Nardi, A. J. Calise

Research output: Contribution to journal › Conference article

Abstract

We consider adaptive output feedback control of nonlinear systems. Given a smooth reference trajectory, the problem is to design a controller that forces the system measurement to track it with bounded errors. The classical approach requires building a state observer. However, finding a good observer for a highly nonlinear and uncertain plant is not an obvious task. We argue that it should be sufficient to build an observer for the output tracking error. Uniform ultimate boundedness of error signals is shown through Lyapunov stability analysis. Simulations of a nonlinear second order system illustrate the theoretical results.

Original languageEnglish (US)
Pages (from-to)2444-2449
Number of pages6
JournalProceedings of the American Control Conference
Volume3
StatePublished - Jan 1 2001
Event2001 American Control Conference - Arlington, VA, United States
Duration: Jun 25 2001 → Jun 27 2001

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Uncertain systems
Feedback
Feedback control
Nonlinear systems
Trajectories
Controllers

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

A novel observer based adaptive output feedback approach for control of uncertain systems. / Hovakimyan, Naira; Nardi, F.; Calise, A. J.

In: Proceedings of the American Control Conference, Vol. 3, 01.01.2001, p. 2444-2449.

Research output: Contribution to journal › Conference article

Hovakimyan, N, Nardi, F & Calise, AJ 2001, 'A novel observer based adaptive output feedback approach for control of uncertain systems', Proceedings of the American Control Conference, vol. 3, pp. 2444-2449.
Hovakimyan N, Nardi F, Calise AJ. A novel observer based adaptive output feedback approach for control of uncertain systems. Proceedings of the American Control Conference. 2001 Jan 1;3:2444-2449.
Hovakimyan, Naira ; Nardi, F. ; Calise, A. J. / A novel observer based adaptive output feedback approach for control of uncertain systems. In: Proceedings of the American Control Conference. 2001 ; Vol. 3. pp. 2444-2449.
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