Optimal Compensation and Implementation for Adaptive Optics Systems
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.
- Publication:
-
Experimental Astronomy
- Pub Date:
- March 2003
- DOI:
- 10.1023/B:EXPA.0000036150.62118.64
- Bibcode:
- 2003ExA....15...67L
- Keywords:
-
- adaptive optics;
- astronomy;
- feedback systems;
- identification;
- optimal control