Design of mobile vehicle-based adaptive optical wave-front processor

被引：1
|
作者：
Jia J.-L. [1 ]
Zhao J.-Y. [1 ]
Wang J.-L. [1 ]
Wang S. [1 ]
Wang L. [1 ]
Wu Q.-L. [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 | 2018年 / 26卷 / 01期
关键词：
Adaptive optics; Field Programmable Gate Array(FPGA); Wave-front processing; Wavefront sensor;
D O I：
10.3788/OPE.20182601.0048
中图分类号：
学科分类号：
摘要：
In order to meet the demands of a mobile vehicle-based adaptive optical system, the traditional wave-front processor hardware architecture was redesigned. In this study, we combined a wave-front processing board, wave-front processing daughter board and DA conversion board, using optical fiber for board communication. In this way, the reliability of the system was improved while the functional requirements were satisfied. Meanwhile, the wave-front processor is the computing center of the closed-loop control of the adaptive optical system, and its operation delay directly affects the control bandwidth of the system. This paper presents a multi-pipeline adaptive real-time wave-front processing method based on FPGA to complete the slope calculation, restoration calculation, and control calculation. For the adaptive optical system, which can provide two-stage precision tracking and consists of 97 sub-apertures and 97 deformation mirrors, the processing delay is 506.25 μs, meeting the requirement of 1 500 Hz real-time wave-front processing. © 2018, Science Press. All right reserved.
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页码：48 / 54
页数：6
相关论文
共 15 条
  • [1] Zhou R.Z., Yan J.X., Adaptive Optics Principle, (1996)
  • [2] Roddier F., Curvature sensing and compensation: a new concept in adaptive optics, Applied Optics, 27, 7, pp. 1223-1225, (1988)
  • [3] Acton D.S., Wizinowich P.L., Divittorio M., Et al., Lessons learned in the design, construction, and implementation of the W. M. Keck Observatory AO system, 4007, pp. 14-19, (2000)
  • [4] Wang J.L., Chen T., Zhang J.X., Et al., General requirements and key technologies for the ground-based high resolution EO imaging telescope, Opt. Precision Eng., 16, 5, pp. 2-16, (2008)
  • [5] Goodsell S.J., Fedrigo E., Dipper N.A., Et al., FPGA developments for the SPARTA project, 5903, (2005)
  • [6] Sandler D.G., Lloyd-Hart M., Martinez T., Et al., 6.5 m MMT infrared adaptive optics system: detailed design and progress report, 2534, pp. 374-377, (1995)
  • [7] Bendek E.A., Hart M., Powell K.B., Et al., Status of the 6.5 m MMT telescope laser adaptive optics system, 7736, (2010)
  • [8] Duncan T.S., Voas J.K., Eager R.J., Et al., Low-latency adaptive optics system processing electronics, 4839, pp. 923-934, (2003)
  • [9] Wang C.X., Li M., Wang C.H., Et al., Real-time implementing wavefront reconstruction for adaptive optics, 5639, pp. 199-204, (2004)
  • [10] Gullapalli S.N., Abreu R., Rappoport W.M., Et al., Modeling of the SAAO Adaptive Optics System, 3931, pp. 272-284, (2000)
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