| 脉冲激光测距系统中高精度时间间隔测量模块的研究 |
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| 引用本文： | 吴刚,李春来,刘银年,戴宁,王建宇.脉冲激光测距系统中高精度时间间隔测量模块的研究[J].红外与毫米波学报,2007,26(3):213-216221. |
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| 作者姓名： | 吴刚 李春来 刘银年 戴宁 王建宇 |
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| 作者单位： | 中科院上海技术物理研究所,上海,200083 |
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| 基金项目： | 中国科学院创新三期项目 |
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| 摘 要： | 时间间隔的测量精度对脉冲激光测距系统的测量精度起决定作用.为此研制了一高精度时间间隔测量模块,该模块基于专用时间数字转换芯片开发,采用延迟线插入法技术,最大测量时间可高达200ms,测时分辨率最高可达125ps,对应测距分辨率18.75mm,适用于远距离的测量.给出了硬件和软件设计方法以及模块的测试结果.
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| 关 键 词： | 脉冲激光测距 时间间隔测量 时间数字转换 延迟线插入法 脉冲 激光测距系统 测量精度 时间间隔 测量模块 研究 SYSTEM LASER RANGING MODULE MEASUREMENT INTERVAL TIME HIGH RESOLUTION 测试结果 软件设计方法 硬件 远距离 对应 分辨率 测时 |
| 文章编号： | 1001-9014（2007）03-0213-04 |
| 收稿时间： | 2006-10-28 |
| 修稿时间： | 2006-10-282007-03-05 |
STUDY ON HIGH RESOLUTION TIME INTERVAL MEASUREMENT MODULE IN PULSED LASER RANGING SYSTEM |
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| WU Gang,LI Chun-Lai,LIU Yin-Nian,DAI Ning,WANG Jian-Yu.STUDY ON HIGH RESOLUTION TIME INTERVAL MEASUREMENT MODULE IN PULSED LASER RANGING SYSTEM[J].Journal of Infrared and Millimeter Waves,2007,26(3):213-216221. |
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| Authors: | WU Gang LI Chun-Lai LIU Yin-Nian DAI Ning WANG Jian-Yu |
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| Affiliation: | Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China |
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| Abstract: | The precision of the pulsed laser ranging system was decided by the precision of the time interval measurement. Therefore, a high resolution time interval measurement module was developed. The module is based on the special time-to-digital conversion chip which adopts the delay line interpolation method. The maximum measuring time of the module is 200ms, and the maximum time resolution is 125ps, of which the corresponding distance resolution is 18.75mm. The module is especially suit for the large distance measurement. The hardware and the software of the module as well as the testing results are also presented. |
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| Keywords: | pulsed laser ranging time interval measurement time-to-digital conversion delay line interpolation method |
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