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Proceedings Paper

Decentralized adaptive control for laser beam tracking systems
Author(s): Vladimir V. Nikulin; Mounir Bouzoubaa; Victor A. Skormin; Timothy E. Busch
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Paper Abstract

A successful controller design is crucial for establishing and maintaining an optical link between free-space communication stations engaged in a laser communication session. This task is quite difficult due to nonlinear behavior, cross-coupled dynamics, and time-varying characteristics of all known beam steering technologies. A novel adaptive control technique utilizing Lyapunov function to ensure global asymptotic stability of the system, thus resulting in a highly robust system performance, is developed. The technique applied to a piezo-electric mirror setup results in a highly efficient controller design that does not require prior knowledge of system dynamics, while providing independent access to azimuth and elevation positions of the laser beam. The paper presents the basic algorithm and demonstrates the results of its application.

Paper Details

Date Published: 20 June 2001
PDF: 9 pages
Proc. SPIE 4272, Free-Space Laser Communication Technologies XIII, (20 June 2001); doi: 10.1117/12.430782
Show Author Affiliations
Vladimir V. Nikulin, SUNY/Binghamton (United States)
Mounir Bouzoubaa, SUNY/Binghamton (Morocco)
Victor A. Skormin, SUNY/Binghamton (United States)
Timothy E. Busch, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 4272:
Free-Space Laser Communication Technologies XIII
G. Stephen Mecherle, Editor(s)

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