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Real-Time Controller Based on FPGA and DSP for Solar Ground Layer Adaptive Optics Prototype System at 1-m NVST
Kong, Lin1,2,3; Zhu, Lei1,2; Zhang, Lanqiang1,2; Bao, Hua1,2; Rao, Changhui1,2
2017
发表期刊IEEE Photonics Journal
ISSN1943-0655
卷号9期号:2页码:7840009
摘要Solar ground layer adaptive optics (GLAO), containing a large field of view (FOV) wavefront sensor (WFS) and one deformable mirror (DM), can be used to reduce and stabilize the seeing effectively over a wide FOV. As the brain of the GLAO system, the real-time controller (RTC) computes the commands to drive the DM according to the average wavefront errors measured by the multi-direction correlating Shack-Hartmann WFS, which is a time-consuming process. A customized RTC based on a high-speed field programming gate array and a multi-core digital signal processor was developed for the solar GLAO prototype system at the 1-m New Vacuum Solar Telescope. Several parallel acceleration techniques are used to reduce the computation time of the RTC. Compared with the previous RTCs, our RTC architecture has nearly no timing jitter. In this paper, the design of the RTC for our solar GLAO prototype will be introduced. The test results of the RTC are also presented. Moreover, the on-sky Sun observational results of the solar GLAO prototype are shown. © 2017 IEEE.
关键词Adaptive control systems - Controllers - Digital signal processing - Digital signal processors - Electric appliances - Field programmable gate arrays (FPGA) - Multicore programming - Parallel processing systems - Signal processing - Timing jitter - Wavefronts
收录类别SCI ; Ei
语种英语
文献类型期刊论文
条目标识符http://ir.ioe.ac.cn/handle/181551/8805
专题自适应光学技术研究室(八室)
作者单位1.Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu; 610209, China;
2.Laboratory on Adaptive Optics, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; 610209, China;
3.University of Chinese Academy of Sciences, Beijing; 100049, China
推荐引用方式
GB/T 7714
Kong, Lin,Zhu, Lei,Zhang, Lanqiang,et al. Real-Time Controller Based on FPGA and DSP for Solar Ground Layer Adaptive Optics Prototype System at 1-m NVST[J]. IEEE Photonics Journal,2017,9(2):7840009.
APA Kong, Lin,Zhu, Lei,Zhang, Lanqiang,Bao, Hua,&Rao, Changhui.(2017).Real-Time Controller Based on FPGA and DSP for Solar Ground Layer Adaptive Optics Prototype System at 1-m NVST.IEEE Photonics Journal,9(2),7840009.
MLA Kong, Lin,et al."Real-Time Controller Based on FPGA and DSP for Solar Ground Layer Adaptive Optics Prototype System at 1-m NVST".IEEE Photonics Journal 9.2(2017):7840009.
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