Optimal Compensation and Implementation for Adaptive Optics Systems

Details Optimal Compensation and Implementation for Adaptive Optics Systems Optimal Compensation and Implementation for Adaptive Optics Systems

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003exa....15...67l&link_type=abstract

Experimental Astronomy, v. 15, Issue 2, p. 67-88 (2003).

Physics

Optics

1

Adaptive Optics, Astronomy, Feedback Systems, Identification, Optimal Control

Scientific paper

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.

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