无人机载多普勒激光雷达海上风场观测及数据处理

Observation and data processing of offshore wind field based on UAV-borne Doppler lidar

介绍了中国海洋大学激光雷达团队的小型化机载多普勒激光雷达系统研制工作、机载运动状态下的姿态及速度校正算法和海上风场反演方法。分析了2016年在广东省海陵岛近岸海域开展的国内首次无人直升机载激光雷达海上风场观测实验的数据,并与陆基多普勒激光雷达观测结果进行了比对,验证了系统的工作性能及数据反演算法的有效性。实验结果表明,机载多普勒激光雷达系统运动状态下的观测数据与陆基激光雷达观测数据相关性较好,系统可搭载于小型无人机平台,有效实现海上风场的快速精确观测。

A compact airborne coherent Doppler lidar(ACDL)was developed by Ocean University of China.The sys‐tem design,methods of motion compensation,velocity correction and wind inversion have been explained in this pa‐per.The data analyzed in this paper are based on the first domestic UAV-borne Doppler lidar experiment for offshore wind at Hailing Island,Guangdong Province in 2016.The reliability of correction and inversion algorithms have been proved with ground-based Doppler lidar.ACDL has been proved to be an effective tool to achieve offshore wind obser‐vation.