光学精密工程2025，Vol.33Issue(22)：3441-3448,8.DOI:10.37188/OPE.20253322.3441
转速调控下的激光雷达探测器位置像移匹配方法
Detector position matching method for LiDAR image point deviation via rotational speed control
摘要
Abstract
In mechanical scanning LiDAR,high-speed mirror rotation during long-distance detection in-duces an echo lag angle,causing image point deviation from the detector center and limiting the Optical Scanning Effective Detection Range(OSEDR).A detector position matching method via scanning mirror speed control was proposed.First,a quantitative OSEDR model was established to describe the relation-ship among image point offset,scanning mirror rotation speed,target distance/azimuth,and optical sys-tem parameters.Then,based on the model,the rotation speed of the scanning mirror was adjusted,allow-ing conventional stable targets to serve as the feedback benchmark,replacing the specific long-distance tar-gets required in traditional methods for detector position matching.Experimental results on a tower-based mirror scanning LiDAR system show that at the rated speed of 50 r/s,the maximum detection range in-creases from 1 020 m to 2 000 m,with an improvement of approximately 96%,meeting the theoretical de-tection range requirements.Moreover,the point clouds within this range are continuous and stable without obvious gaps.This method expands the selection of available feedback targets during debugging and pro-vides a reliable and efficient approach to detector position matching in the assembly and alignment of me-chanical scanning LiDAR systems.关键词
激光雷达/探测器位置匹配/像点偏移/转速调控/光学扫描有效探测范围Key words
LiDAR/detector position matching/image point offset/rotational speed control/Optical Scanning Effective Detection Range(OSEDR)分类
信息技术与安全科学引用本文复制引用
HU Xueqing,JIN Guang,MAO Qingzhou,ZHOU Hao,CAI Jiawen..转速调控下的激光雷达探测器位置像移匹配方法[J].光学精密工程,2025,33(22):3441-3448,8.基金项目
国家自然科学基金(No.42427801) （No.42427801）
