主动探测中后向散射的理论仿真和实验验证  

Analysis and Experiment Verification of Back-scattering of Atmosphere in Active Detecting

作　　者：公茂林 刘顺发[1,2] 安涛[1,2] 李红川[1] 

机构地区：[1]中国科学院光电技术研究所,成都610209 [2]中国科学院光束控制重点实验室,成都610209 [3]中国科学院大学,北京100049

出　　处：《光电工程》2016年第2期8-13,共6页Opto-Electronic Engineering

基　　金：国家863高技术基金资助项目

摘　　要：激光照明的主动探测是通过发射激光对目标进行照明,并对目标的反射光接收、成像的一种探测方式。本文分析了该过程中大气后向散射对系统探测能力的噪声干扰,建立了相应的物理模型,并对相关影响因素做了仿真,为主动探测系统设计中减小后向散射的考虑提供了理论支持。设计了外场实验,利用CCD相机对远距离目标的回波以及大气后向散射进行了探测,并将探测图像的灰度值统计与理论计算结果进行了定性比对,实验结果与理论分析较为符合。此外,该实验系统的设计参数也为相关主动探测系统的设计提供了参考。This paper analyzed the impact of the atmosphere back-scattering on the active detecting system and built a corresponding physical model based on geometrical optics. A simulated calculation of several related factors was implemented and then the illation of the interfering ability of the back-scattering was validated by a long-distance detecting experiment outdoor. An appropriate result with the illation was achieved which can be helped for the design of system involving the transmitting of the laser in the atmosphere such as laser active detecting, range measurement with laser and so on.

关 键 词：主动探测 后向散射 激光照明 

分 类 号：O436.2[机械工程—光学工程]