Optimal Compensation and Implementation for Adaptive Optics Systems |
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| Authors: | Douglas P Looze Markus Kasper Stefan Hippler Orhan Beker Robert Weiss |
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| Institution: | (1) Department of Electrical and Computer Engineering, University of Massachusetts, Amherst, MA, 01003, U.S.A;(2) European Southern Observatory, Garching, Germany;(3) Max Planck Institut für Astronomie, Heidelberg, Germany |
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| Abstract: | This paper develops a compensation algorithm based on Linear–Quadratic–Gaussian (LQG) control system design whose parameters
are determined (in part) by a model of the atmosphere. The model for the atmosphere is based on the open-loop statistics of
the atmosphere as observed by the wavefront sensor, and is identified from these using an auto-regressive, moving average
(ARMA) model. The (LQG) control design is compared with an existing compensation algorithm for a simulation developed at ESO
that represents the operation of MACAO adaptive optics system on the 8.2 m telescopes at Paranal, Chile.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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| Keywords: | adaptive optics astronomy feedback systems identification optimal control |
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