一种车载激光雷达自动准直系统  

A Self-alignment System of a Mobile Lidar

作　　者：谭锟[1] 邵石生[1] 

机构地区：[1]中国科学院安徽光学精密机械研究所大气光学中心,安徽合肥230031

出　　处：《大气与环境光学学报》2008年第5期344-348,共5页Journal of Atmospheric and Environmental Optics

基　　金：安徽光机所大气光学重点实验室创新项目资助

摘　　要：研制了一种适用于车载激光雷达的收发光路自动准直系统。该系统采用了CCD相机和图像处理技术以确定发射光束的方向与接收光路的准直情况。使用一台2维电动调整导向镜,改变激光发射方向。计算机测控软件负责监测收发准直情况并且实现发射激光光束方向的调整,而无需人员干预。实验室验证系统上的测量表明,当准直误差为40μrad时,完成准直需要的时间通常不超过40s。A self-aligning technique of mobile lidar optics was developed, which adopted CCD camera and image processing to measure laser beam direction departure from the axis of receiver optics. It used a 2D motorized optical mounts to change the direction of laser beam. The computer presides over monitoring the alignment and adjusting the direction of laser beam. The measurements in testing system in the lab indicate that, the spending time to accomplish self-aligning has not exceed 40 s normally, when the aligning error presets to 40 μrad.

关 键 词：激光雷达 自动准直 图像处理 CCD相机 

分 类 号：TN958.98[电子电信—信号与信息处理]