| 光子计数成像激光雷达时间间隔测量系统研究 |
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| 引用本文： | 朱磊,黄庚华,欧阳俊华,舒嵘,王建宇.光子计数成像激光雷达时间间隔测量系统研究[J].红外与毫米波学报,2008,27(6). |
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| 作者姓名： | 朱磊 黄庚华 欧阳俊华 舒嵘 王建宇 |
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| 作者单位： | 中国科学院上海技术物理研究所,上海,200083 |
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| 基金项目： | 国家高技术研究发展计划(863计划)
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| 摘 要： | 光子计数成像激光雷达需要测量一个激光主波和与之对应的多个回波之间的时间间隔,并具有高精度.采用延迟线插入法时间间隔测量技术,研制了具有27ps分辨率的多脉冲时间间隔测量系统,介绍了系统的软硬件结构及工作流程,测试了精度和线性度等指标,实验结果表明系统精度达到80ps,线性度良好.
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| 关 键 词： | 光子计数 成像激光雷达 时间间隔测量 时间数字转换 延迟线插入法 |
STUDY ON TIME INTERVAL MEASUREMENT SYSTEM IN PHOTON COUNTING IMAGING LIDAR |
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| ZHU Lei,HUANG Geng-Hu,OUYANG Jun-Hu,SHU Rong,WANG Jian-Yu.STUDY ON TIME INTERVAL MEASUREMENT SYSTEM IN PHOTON COUNTING IMAGING LIDAR[J].Journal of Infrared and Millimeter Waves,2008,27(6). |
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| Authors: | ZHU Lei HUANG Geng-Hu OUYANG Jun-Hu SHU Rong WANG Jian-Yu |
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| Abstract: | The time intervals between laser main pulse and the corresponding multiple echoes were needed to measure in photon counting imaging lidar,and the system had to have high precision.The delay line interpolation method was used and a system with the resolution of 27ps was developed.The hardware and the software of the system were presented.The indexes such as the precision and linearity were tested.The results show that the precision can reach 80ps and the linearity is good. |
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| Keywords: | photon counting imaging lidar time interval measurement time-to-digital conversion delay line interpolation method |
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