相干式CO2激光成像雷达光学系统

根据目标粗糙表面散射回波统计理论和随机相位匹配规则分析了相干激光雷达光学天线参数确定和本振光设计方法，研制了一套扫描激光雷达光学天线系统，并应用于单管线性调频脉冲压缩激光雷达接收到了７．８ｋｍ房屋的散射回波信号，信噪比较好，激光功率约为５Ｗ。

Optical System of an Imaging CO2 Laser Radar

According to the charecteristics of the backscattered light from the rough sur faces of the target far aw ay and the random phase m atching rule, the m ethod of coherent op tical head coefficients designing is discussed. An opticalsystem is developed that is an opticalhead of a coherent im aging C O2 laser radar w ith chirp pulse com pression. In the experim entallaser radar only one continuous w ave single m ode C O2 laser is used, and the signals from abuilding of 7.8 km aw ay are obtained w ith acceptable S N R w hile the lase output is about 5 W .