| 激光雷达扫描方式 |
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| 引用本文： | 袁光福,马晓燠,刘爽,杨奇龙.激光雷达扫描方式[J].强激光与粒子束,2020,32(4):041001-1-041001-6. |
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| 作者姓名： | 袁光福 马晓燠 刘爽 杨奇龙 |
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| 作者单位： | 电子科技大学光电科学与工程学院,成都611731;中国科学院光电技术研究所,成都610041;中国科学院光电技术研究所,成都610041;电子科技大学光电科学与工程学院,成都611731 |
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| 摘 要： | 为实现激光束对空域的有效扫描和探测,研究了栅形扫描、李萨茹形扫描、螺旋形扫描和六边形扫描四种常见的激光雷达扫描方式,推导了相应的扫描方程,讨论了参数的物理意义及调整方法;重点研究了栅形扫描和六边形扫描方式下光斑的分布情况,通过仿真分析了两种扫描方式下光束的漏扫率和重叠率,结果表明,在相同扫描条件下六边形扫描方式的漏扫区域最少。展示了基于上述研究内容的扫描控制系统实物图及扫描图案。分析总结了四种扫描方式的特点,给出了每种扫描方式的适用情况及使用建议。
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| 关 键 词： | 激光雷达 大气探测 扫描方式 |
| 收稿时间： | 2019-09-24 |
Research on lidar scanning mode |
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| Yuan Guangfu,Ma Xiaoyu,Liu Shuang,Yang Qilong.Research on lidar scanning mode[J].High Power Laser and Particle Beams,2020,32(4):041001-1-041001-6. |
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| Authors: | Yuan Guangfu Ma Xiaoyu Liu Shuang Yang Qilong |
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| Affiliation: | 1.School of Photoelectric Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China2.Institute of Photoelectric Technology, Chinese Academy of Sciences, Chengdu 610041, China |
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| Abstract: | Scanning lidar is widely used in atmospheric remote sensing detection and target capture. To realize the effective detection of lidar, this paper studies four common scanning modes of lidar: raster scanning, Lissajo scanning, spiral scanning and hexagonal scanning. The corresponding scanning equation is deduced, and the physical meaning and adjustment method of parameters are discussed. Aiming at the requirement of fine scanning in atmospheric remote sensing detection, the distribution of spot under raster scanning and hexagonal scanning is studied. The leakage rate and overlap rate of these two scanning modes are simulated and analyzed. The results show that under the same scanning condition, the leakage area of hexagonal scanning mode is the smallest. The physical image and scan pattern of scanning control system based on the above research are presented. Finally, the characteristics of these four scanning modes are summarized, and their application and suggestions are given. |
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| Keywords: | lidar atmospheric remote sensing detection scanning mode |
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