Optics and Precision Engineering, Volume. 30, Issue 23, 3004(2022)
Design and dynamic performance of wavefront processor for 961 element adaptive optics system based on GPU
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.
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Leqiang YANG, Jianli WANG, Kainan YAO, Hongzhuang LI, Lu CHEN, Meng SHAO. Design and dynamic performance of wavefront processor for 961 element adaptive optics system based on GPU[J]. Optics and Precision Engineering, 2022, 30(23): 3004
Received: Sep. 29, 2022
Accepted: --
Published Online: Jan. 10, 2023
The Author Email: SHAO Meng (shaomeng0431@163.com)