NDLI: Lyapunov-based decentralized adaptive control for laser beam tracking systems

Content Provider	IEEE Xplore Digital Library
Author	Nikulin, V.V. Bouzoubaa, M. Skormin, V.A. Busch, T.E.
Copyright Year	1965
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 basic algorithm is presented and the results of its application are demonstrated.
Starting Page	1191
Ending Page	1200
Page Count	10
File Size	1033678
File Format	PDF
ISSN	00189251
Volume Number	39
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Adaptive control Laser beams Optical control Optical design Communication system control Optical fiber communication Nonlinear dynamical systems Beam steering Lyapunov method Asymptotic stability
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Aerospace Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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