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Adaptive Optics H_2-optimal Control Design Applied on an Experimental Setup

机译:自适应光学H_2最优控制设计在实验装置上的应用

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Most adaptive optics systems (AO) are based on a simple control law that is unable to account for the temporal evolution of the wavefront. In this paper, a recently proposed data-driven H_2-optimal control approach is demonstrated on an AO laboratory setup. The proposed control approach does not assume any form of decoupling and can therefore exploit the spatio-temporal correlation in the wavefront. The performance of the optimal control approach is compared with a conventional method. An analysis of the dominant error sources shows that the optimal control approach leads to a significant reduction in the temporal error. Since the temporal error grows with the Greenwood to sampling frequency ratio, the performance gain is especially large at large ratios.
机译:大多数自适应光学系统(AO)基于简单的控制定律,该定律无法解释波前的时间演变。在本文中,在AO实验室设置上演示了最近提出的数据驱动的H_2-最优控制方法。所提出的控制方法不采取任何形式的解耦,因此可以利用波前的时空相关性。将最佳控制方法的性能与常规方法进行比较。对主要误差源的分析表明,最佳控制方法可显着减少时间误差。由于时间误差随格林伍德与采样频率之比的增加而增加,因此在大比例时性能增益特别大。

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