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.
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.
出处
《红外与毫米波学报》
SCIE
EI
CAS
CSCD
北大核心
2008年第6期461-464,共4页
Journal of Infrared and Millimeter Waves
基金
863计划(SQ2007AA12Z139475)资助项目
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
photon counting
imaging lidar
time interval measurement
time-to-digital conversion
delay line interpolation method
