相干激光测距中的多普勒频率动态补偿研究

The dynamic compensation of Doppler frequency in coherent range lidar

介绍了相干体制的激光雷达相较传统直接探测激光雷达的优点,阐述了在相干激光测距中进行光频率多普勒动态补偿的必要性,给出了进行频率补偿的系统模型和工作流程。文中基于1550 nm激光搭建了试验系统,通过搭建的实验平台对方案进行了验证。验证了在相干激光雷达中使用光频率补偿技术的可行性。

The advantage of coherent lidar compared with the traditional direct detection lidar are introduced,the necessity of Doppler frequency dynamic compensation in coherent range lidar is expounded,and the system model and the flow of work are given in the paper.The experimental system is built based on 1550 nm laser,and the scheme is verified by the experimental platform.The feasibility of using optical frequency compensation technique in coherent lidar is verified.