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Proceedings Paper

Classical adaptive optics: disturbance rejection control
Author(s): Jean-Pierre Folcher; Andrea Abelli; André Ferrari; Marcel Carbillet
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Paper Abstract

This paper addresses the residual wavefront variance minimization by means of a linear quadratic gaussian control methodology. The proposed approach emphasizes the ability of the adaptive optics loop to reject the atmospheric aberration. We derive a diagonal state space system which clearly separates the dynamics of the plant (deformable mirror & wavefront sensor) from the disturbance dynamics (atmospheric model). This representation facilitates the numerical resolution of the problem. A frequency analysis is carried out to check performance and robustness specifications of the multiple-input multiple-output feedback system. The effectiveness of the approach is demonstrated through numerical experiments using wavefronts generated with the Software Package CAOS.

Paper Details

Date Published: 28 July 2010
PDF: 12 pages
Proc. SPIE 7736, Adaptive Optics Systems II, 77364F (28 July 2010); doi: 10.1117/12.857054
Show Author Affiliations
Jean-Pierre Folcher, Lab. Fizeau, CNRS, Univ. de Nice Sophia Antipolis (France)
Andrea Abelli, Lab. Fizeau, CNRS, Univ. de Nice Sophia Antipolis (France)
André Ferrari, Lab. Fizeau, CNRS, Univ. de Nice Sophia Antipolis (France)
Marcel Carbillet, Lab. Fizeau, CNRS, Univ. de Nice Sophia Antipolis (France)

Published in SPIE Proceedings Vol. 7736:
Adaptive Optics Systems II
Brent L. Ellerbroek; Michael Hart; Norbert Hubin; Peter L. Wizinowich, Editor(s)

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