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Comptes Rendus Physique
Volume 6, n° 10
pages 1059-1069 (décembre 2005)
Doi : 10.1016/j.crhy.2005.10.013
Optimal control for Multi-Conjugate Adaptive Optics
Contrôle optimal pour lʼoptique adaptative multi-conjuguée
 

Cyril Petit a , Jean-Marc Conan a, , Caroline Kulcsár b , Henri-François Raynaud b , Thierry Fusco a , Joseph Montri a , Didier Rabaud c
a Office national dʼétudes et de recherches aérospatiales, BP 72, 92322 Châtillon cedex, France 
b Université Paris 13, institut Galilée, L2TI, 93430 Villetaneuse, France 
c Shaktiware, 27, boulevard C. Moretti, 13014 Marseille, France 

Corresponding author.
Abstract

Classic adaptive optics (AO) is now a proven technique that provides a closed loop real time correction of the turbulence. It is generally based on simple and efficient control algorithms. The next AO generation (Multi-Conjugate AO (MCAO) in its various forms and Extreme AO (XAO)) will require more sophisticated control approaches, especially in the case of wide field AO. We present here the concepts behind optimal control. The advantages compared to more standard approaches are stressed. A first experimental validation is presented. To cite this article: C. Petit et al., C. R. Physique 6 (2005).

The full text of this article is available in PDF format.
Résumé

LʼOptique Adaptative (OA) classique est aujourdʼhui une technique éprouvée permettant une correction temps réel en boucle fermée des effets de la turbulence. Généralement, elle se base sur des lois de commande simples et efficaces. Cependant, les futures générations dʼOA (Optique Adaptative Multi-conjuguée (OAMC) dans ces diverses formes et lʼOA Extreme), nécessiteront des lois de contrôle plus sophistiquées en particulier dans le cas de lʼOA grand champ. Nous présentons dans cet article une solution de contrôle optimal pour lʼOA en général, et mettons en évidence ses atouts comparativement aux approches standard. Une première validation expérimentale de cette approche est présentée. Pour citer cet article : C. Petit et al., C. R. Physique 6 (2005).

The full text of this article is available in PDF format.

Keywords : Adaptive optics, Kalman filter, Control theory

Mots-clés : Optique adaptative, Filtre de Kalman, Automatique




© 2005  Published by Elsevier Masson SAS de la part de Académie des sciences.
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