临近空间激光测风雷达原理样机和实验进展  

Principle Prototype and Experimental Progress of Wind Lidar in Near Space

作　　者：刘菲菲 毕德仓[3,4] 刘恒 原禄城 王明建 竹孝鹏[3,4] 刘继桥[3,4] 陈卫标 Liu Feifei;Bi Decang;Liu Heng;Yuan Lucheng;Wang Mingjian;Zhu Xiaopeng;Liu Jiqiao;Chen Weibiao(Key Laboratory of Space Laser Communication and Detection Technology,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;School of Physical Science and Technology,Shanghai Tech University,Shanghai 201210,China;Laboratory of Space Laser Engineering and Technology,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院上海光学精密机械研究所空间激光信息传输与探测技术重点实验室,上海201800 [2]上海科技大学物质科学与技术学院,上海201210 [3]中国科学院上海光学精密机械研究所空间激光工程技术实验室,上海201800 [4]中国科学院大学,北京100049

出　　处：《中国激光》2020年第8期240-247,共8页Chinese Journal of Lasers

基　　金：国家自然科学基金(6138108)。

摘　　要：临近空间风场数据对飞行器的姿态控制和飞行安全具有重要意义。针对中国科学院上海光学精密机械研究所自行研制的可搭载于临近空间飞行器的直接探测多普勒激光测风雷达(DWL)原理样机,介绍了其工作原理、系统结构,并给出了相关的技术参数。对该DWL原理样机进行了地面自测试实验,并将反演结果与相干探测激光测风雷达(CDL)和探空气球的测量结果进行了对比。结果显示:该DWL原理样机反演的近地面的风速风向结果与CDL和探空气球的测量结果具有良好的一致性。在0.3~1.1 km的高度范围内,以CDL的测量结果为基准,该DWL原理样机反演的风速均方根误差(RMSE)为1.38 m/s,风向均方根误差为9°;在0~3 km的高度范围内,以探空气球的测量结果为基准,该DWL原理样机反演的风速均方根误差不大于2.1 m/s,风向均方根误差不大于10°。The wind field data in near space is of great significance to the attitude control and flight safety for aircrafts.As for the principle prototype of a direct detection Doppler wind lidar(DWL)developed by Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,which can be mounted on aircrafts in near space,its working principle and system structure are introduced,and its relevant technical parameters are given.The DWL principle prototype is self-tested on the ground and the inversion results are compared with those from the coherent Doppler lidar(CDL)and the sounding balloons.The results show that the wind speed and wind direction measurement results retrieved by the DWL principle prototype agree well with those measured by the CDL and the sounding balloons near the ground.Within the height range of 0.3--1.1 km,the root mean square error(RMSE)of wind speed retrieved by the DWL principle prototype is 1.38 m·s^-1,and the RMSE of wind direction is 9°based on the CDL measurement results.Within the height range of 0-3 km,the RMSE of wind speed retrieved by the DWL principle prototype is not more than 2.1 m·s^-1,and the RMSE of wind direction is not more than 10°based on the sounding balloon measurement results.

关 键 词：遥感 激光测风雷达 多普勒频移 风场探测 数据对比 

分 类 号：TN958.98[电子电信—信号与信息处理]