主被动一体化多波束激光雷达设计与实现  

Design and Implementation of the Active-passive Multi-channel Li DAR

作　　者：孙立[1] 杨居奎[1] 王玉诏[1] 彭欢[1] 张晨阳[1] 杨超 汤天瑾[1] 宋志清[1] 穆生博[1] 倪建军[1] 孟俊清[2] 张传强 SUN Li;YANG Jukui;WANG Yuzhao;PENG Huan;ZHANG Chenyang;YANG Chao;TANG Tianjin;SONG Zhiqing;MU Shengbo;NI Jianjun;MENG Junqing;ZHANG Chuanqiang(Beijing Institute of Space Mechanics&Electricity,Beijing 100094,China;Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;Institute of Spacecraft System Engineering,CAST,Beijing 100094,China)

机构地区：[1]北京空间机电研究所,北京100094 [2]中国科学院上海光学精密机械研究所,上海201800 [3]中国空间技术研究院总体部,北京100094

出　　处：《航天返回与遥感》2022年第6期27-35,共9页Spacecraft Recovery & Remote Sensing

基　　金：国家重大科技专项工程。

摘　　要：“句芒号”陆地生态系统碳监测卫星是中国首颗以主动激光雷达作为主载荷的林业遥感卫星。星上装载的多波束激光雷达是国际首台主被动一体化遥感载荷,采用激光与相机相结合的工作模式,利用激光雷达获取地面植被高度信息的同时,还可以获得高分辨率地面多光谱正射影像。文章回顾和介绍了该载荷系统的设计思路、工作原理、关键技术及实现情况,给出了测试与试验结果,可为同类载荷研制提供参考。“Gou Mang” Terrestrial Ecosystem Carbon Inventory Satellite is China’s first forestry remote sensing satellite with an active LiDAR as the main payload. As the first active and passive integrated remote sensing load in the world, the multi-channel Carbon Sinks and Aerosol LiDAR(CASAL) adopts the working mode of combining laser and camera. While using LiDAR to obtain the height information of ground vegetation,it can also realize high resolution multi-spectral imaging. This paper reviews the development situation of CASAL, including system design, key technologies and their implementation, and describes the on-orbit sun-tracking strategy as well as the atmospheric refraction correction. The related information would be helpful for the development of similar loads.

关 键 词：多波束 激光雷达 生物量 植被探测 陆地生态系统碳监测卫星 航天遥感 

分 类 号：V447[航空宇航科学与技术—飞行器设计] TP79[自动化与计算机技术—检测技术与自动化装置]