凝视型激光主动成像系统性能验证

徐正平; 许永森; 姚园; 李刚; 石磊; 孙翯; 于潇; 沈宏海

doi:10.3788/OPE.20172506.1441

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凝视型激光主动成像系统性能验证

现代应用光学 | 更新时间：2020-07-07

- 凝视型激光主动成像系统性能验证
- Performance verification of staring laser active imaging system
- 光学精密工程 2017年25卷第6期页码：1441-1448
- 作者机构：
  
  1.中国科学院苏州生物医学工程技术研究所, 江苏苏州 215163
  2.中国科学院航空光学成像与测量重点实验室, 吉林长春 130033
- 作者简介：
  
  徐正平(1983-), 男, 河南许昌人, 博士, 副研究员, 硕士生导师, 2006年于东北师范大学获得学士学位, 2011年于中科院长春光机所获得博士学位, 主要从事电子学设计方面的研究。E-mail:xuzp090@163.com XU Zheng-ping, E-mail: xuzp090@163.com
- 基金信息：
  
  中国科学院国防科技创新基金资助项目(CXJJ-14-S123);吉林省科技发展计划资助项目(20150204022GX)
- DOI：10.3788/OPE.20172506.1441
  中图分类号： TN249;P225.2
- 收稿日期：2016-10-21，
  
  录用日期：2017-1-5，
  
  纸质出版日期：2017-06-25
- 稿件说明：
移动端阅览
徐正平, 许永森, 姚园, 等. 凝视型激光主动成像系统性能验证[J]. 光学精密工程, 2017,25(6):1441-1448.

Zheng-ping XU, Yong-sen XU, Yuan YAO, et al. Performance verification of staring laser active imaging system[J]. Optics and precision engineering, 2017, 25(6): 1441-1448.
徐正平, 许永森, 姚园, 等. 凝视型激光主动成像系统性能验证[J]. 光学精密工程, 2017,25(6):1441-1448. DOI： 10.3788/OPE.20172506.1441.

Zheng-ping XU, Yong-sen XU, Yuan YAO, et al. Performance verification of staring laser active imaging system[J]. Optics and precision engineering, 2017, 25(6): 1441-1448. DOI： 10.3788/OPE.20172506.1441.

摘要

为了研究凝视型激光主动成像系统对非合作目标的成像性能及在目标跟踪中的应用，设计了基于APD阵列和分束照明的凝视型激光主动成像系统。对激光回波功率与目标距离之间的关系进行了理论分析，结果显示：200 m外目标的回波功率小于1 μW。为提高系统作用距离，选取高增益带宽积跨阻放大器OPA657N提高系统增益，并通过优化元件布局来克服高跨阻值时的通道串扰。实验验证了距离方程的正确性。在此基础上，采用八连通团块检测方法实现目标探测，并对两轴目标跟踪进行了实验验证。结果显示：系统能够对200 m处非合作目标稳定成像，并能获取420 m处非合作目标的回波信号；当目标在俯仰轴、偏航轴方向行程大于2.5°时，系统能够实时探测并稳定跟踪。

Abstract

A staring laser active imaging system based on APD arrays and splitting beam illumination was designed

in order to study the imaging performance of the imaging system on non-cooperative target in target tracking. The relationship between laser echo power and target distance was analyzed theoretically

and the result shows that the echo power of targets beyond 200 m is less than 1 μW. In order to improve operating distance of the system

a trans-impedance amplifier OPA657N with high gain-bandwidth was adopted to improve the system gain. In addition

the crosstalk of channels at high trans-impedance was overcame by optimizing the element arrangement. A block detection of 8-adjacent connection algorithm was employed to realize target detection and two-axis target tracking based on the verification of distance equation. The results show that the proposed imaging system can achieve stable imaging on non-cooperative target in 200 m

and can obtain echo signal of non-cooperative target in 420 m. When travel of the target in the direction of pitch axis and yaw axis is more than 2.5°

the system can realize real-time detection and stable tracking of the target.

关键词

Keywords

references

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