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中国科学院 长春光学精密机械与物理研究所, 吉林 长春 130033
[ "贾建禄(1982-), 男, 内蒙赤峰人, 博士, 副研究员, 2006年于天津大学获得学士学位, 2012年于中国科学院长春光学精密机械与物理研究所获得博士学位, 主要从事自适应光学系统波前处理的研究。E-mail:jianluciomp@163.com" ]
[ "赵金宇(1976-), 男, 内蒙通辽人, 研究员, 主要从事光电望远镜测量精度分析、软件设计和数据通信等研究。E-mail:zhaojy@ciomp.ac.cn" ]
收稿日期:2017-02-14,
录用日期:2017-4-12,
纸质出版日期:2018-01-25
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贾建禄, 赵金宇, 王建立, 等. 机动式车载自适应光学波前处理器的设计[J]. 光学 精密工程, 2018,26(1):48-54.
Jian-lu JIA, Jin-yu ZHAO, Jian-li WANG, et al. Design of mobile vehicle-based adaptive optical wave-front processor[J]. Optics and precision engineering, 2018, 26(1): 48-54.
贾建禄, 赵金宇, 王建立, 等. 机动式车载自适应光学波前处理器的设计[J]. 光学 精密工程, 2018,26(1):48-54. DOI: 10.3788/OPE.20182601.0048.
Jian-lu JIA, Jin-yu ZHAO, Jian-li WANG, et al. Design of mobile vehicle-based adaptive optical wave-front processor[J]. Optics and precision engineering, 2018, 26(1): 48-54. DOI: 10.3788/OPE.20182601.0048.
为满足机动式车载自适应光学系统的需求,设计了专用的波前处理器。该波前处理器采用波前处理主板、波前处理子板和DA转化板相结合的硬件架构,由光纤作为通信载体。在满足功能需求的同时提高了系统的可靠性;波前处理器是自适应光学系统闭环控制的运算中心,其运算延时直接影响系统的控制带宽。本文提出一种基于FPGA的多线流水自适应光学实时波前处理方法,实现了波前斜率计算、复原运算和控制运算。结果表明:对于两级精密跟踪,97个子孔径以及97单元变形镜的自适应光学系统,系统处理延时为506.25
μ
s,满足系统1 500 Hz的实时波前处理需求。
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
μ
s
meeting the requirement of 1 500 Hz real-time wave-front processing.
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