Robust control of a bimorph mirror for adaptive optics system - Archive ouverte HAL
Article Dans Une Revue Applied optics Année : 2008

Robust control of a bimorph mirror for adaptive optics system

Résumé

We apply robust control technics to an adaptive optics system including a dynamic model of the deformable mirror. The dynamic model of the mirror is a modification of the usual plate equation. We propose also a state-space approach to model the turbulent phase. A continuous time control of our model is suggested taking into account the frequential behavior of the turbulent phase. An H∞ controller is designed in an infinite dimensional setting. Due to the multivariable nature of the control problem involved in adaptive optics systems, a significant improvement is obtained with respect to traditional single input single output methods.
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Dates et versions

hal-00271968 , version 1 (10-04-2008)

Identifiants

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Lucie Baudouin, Denis Arzelier, Christophe Prieur, Fabien Guignard. Robust control of a bimorph mirror for adaptive optics system. Applied optics, 2008, 47 (20), pp.3637-3645. ⟨10.1364/AO.47.003637⟩. ⟨hal-00271968⟩
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