Robust control of a bimorph mirror for adaptive optics systems

被引：19

作者：

Baudouin, Lucie ^{[1
]}

Prieur, Christophe ^{[1
]}

Guignard, Fabien ^{[1
]}

Arzelier, Denis ^{[1
]}

机构：

[1] Univ Toulouse, CNRS, LAAS, F-31077 Toulouse 4, France

来源：

APPLIED OPTICS | 2008年 / 47卷 / 20期

关键词：

D O I：

10.1364/AO.47.003637

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We apply robust control techniques 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-infinity controller is designed in an infinite-dimensional setting. Because of 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. (C) 2008 Optical Society of America.

引用

页码：3637 / 3645

页数：9

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