Design and dynamic performance of wavefront processor for 961 element adaptive optics system based on GPU

被引：0
|
作者：
Yang L. [1 ]
Wang J. [1 ]
Yao K. [1 ]
Li H. [1 ]
Chen L. [1 ]
Shao M. [1 ]
机构：
[1] Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun
来源：
Guangxue Jingmi Gongcheng/Optics and Precision Engineering | 2022年 / 30卷 / 23期
关键词：
961-element deformable mirror; adaptive optics; graphics process unit; wavefront processing;
D O I：
10.37188/OPE.20223023.3004
中图分类号：
学科分类号：
摘要：
In order to meet the wavefront processing scale，speed，and control bandwidth requirements of the thousand-element adaptive optics system of the 4-m-level ground-based large-aperture optical telescope，a GPU-based high-speed wavefront processor for the adaptive optics system is examined. The wavefront processing method of the adaptive optics system is introduced，and the realization and optimization methods of the GPU-based wavefront processing architecture are discussed. A testbed simulation experiment is performed using a turbulence simulator，in order to analyze the dynamic performance of the 961-unit adaptive optics system. The experimental results show that when the sampling frequency of the 961-unit adaptive optics system is 1 500 Hz，the 0 dB residual error rejection bandwidth of the system can reach 100 Hz. This rejection bandwidth value meets the application requirements of the 4-m optical telescope adaptive optics system. © 2022 Chinese Academy of Sciences. All rights reserved.
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页码：3004 / 3012
页数：8
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