窄脉冲CO_2相干激光成像雷达目标距离测量研究

Distance Measurement of a Target with CO_2 Coherence Imaging Lidar of Short Pulse

较详细地研究了窄脉冲外差体制CO2 激光成像雷达的目标距离测量 ,指出了影响单个光脉冲测距精度的随机误差和系统误差的主要来源 ,并利用现有的实验装置进行远目标测距对比实验 ,观测到CO2 激光器所发射的窄脉冲和 2 35 5m目标回波波形 ,精确地测量出光脉冲飞行的往返时间 。

This article gives a detail study of short pulse heterodyne system about the target distance measurement with carbon dioxide laser radar. It points out the influence of random error on single pulse distance measure precision and the main source of system error. A contrast experiment of far target distance measure was carried out. The pulse trip-back time was measured.