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

Jian-lu JIA; Jin-yu ZHAO; Jian-li WANG; Shuai WANG; Liang WANG; Qing-lin WU

doi:10.3788/OPE.20182601.0048

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

Modern Applied Optics | 更新时间：2020-08-13

- Design of mobile vehicle-based adaptive optical wave-front processor
- Optics and Precision Engineering Vol. 26, Issue 1, Pages: 48-54(2018)
- 作者机构：
  
  中国科学院长春光学精密机械与物理研究所, 吉林长春 130033
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20182601.0048
  CLC： O439;TH743
- Received：14 February 2017，
  
  Accepted：12 April 2017，
  
  Published：25 January 2018
- 稿件说明：
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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：

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.

摘要

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

s，满足系统1 500 Hz的实时波前处理需求。

Abstract

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

meeting the requirement of 1 500 Hz real-time wave-front processing.

关键词

Keywords

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Related Institution

Changchun Institute of Optics, Fine Mechanics and Physics,Chinese Academy of Sciences2. Changchun Institute of Optics， Fine Mechanics and Physics

Hebei Hanguang Industry Co.， LTD

Nanhu Laser Laboratory， National University of Defense Technology

College of Advanced Interdisciplinary Studies， National University of Defense Technology

Changchun Institute of Optics，Fine Mechanics and Physics，Chinese Academy of Sciences

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