Abstract Adaptive optics systems are extensively used in astronomy to obtain diffraction-limited images of celestial objects with ground-based telescopes. The crucial point is to control a deformable mirror to compensate for the distortions introduced by atmospheric turbulence in the incoming wavefront. In this paper, a modal PI-shaped LQG controller taking advantage of model knowledge is designed; it compares favorably to standard PI and Kalman-based controllers used in state-of-the-art control systems of telescopes. The proposed architecture is validated with simulations and experiments on a laboratory adaptive optics test-bench.

中文翻译：

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自适应光学系统的PI型LQG控制设计

摘要 自适应光学系统广泛用于天文学，以通过地面望远镜获取天体的衍射极限图像。关键是控制可变形反射镜，以补偿入射波前大气湍流引起的失真。本文利用模型知识设计了一种模态PI型LQG控制器；与最先进的望远镜控制系统中使用的标准 PI 和基于卡尔曼的控制器相比，它具有优势。所提出的架构通过实验室自适应光学测试台上的模拟和实验进行了验证。