高分多模卫星大气校正总体设计与在轨验证  

Overall design and oon-orbit vverification of synchronization monitoring atmosphere corrector on high-resolution multi-mode satellite(GFDM)

作　　者：余婧 杨文涛[1] 李正强 侯伟真 裘桢炜 李雨廷 葛邦宇 YU Jing;YANG Wentao;LI Zhengqiang;HOU Weizhen;QIU Zhenwei;LI Yuting;GE Bangyu(Institute of Remote Sensing Satellite,China Academy of Space Technology,Beijing 100094,China;State Environmental Protection Key Laboratory of Satellite Remote Sensing,Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100101,China;Anhui Institute of Optics and Fine Mechanics,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,China)

机构地区：[1]中国空间技术研究院遥感卫星总体部,北京100094 [2]中国科学院空天信息创新研究院遥感卫星应用国家工程实验室,北京100101 [3]中国科学院合肥物质科学研究院安徽光学精密机械研究所,合肥230031

出　　处：《遥感学报》2022年第5期1039-1050,共12页NATIONAL REMOTE SENSING BULLETIN

基　　金：国家重大航天项目;国家自然科学基金(编号:41871269)。

摘　　要：高分多模卫星搭载中国首台民用大气同步校正仪,可以对同平台的高分辨率相机观测区域进行时间同步、视场覆盖的大气参数测量,实现对高分辨率图像的大气校正。文章论述了高分多模卫星大气同步校正的总体设计思路,并给出了时空同步、多谱段、多偏振通道探测体制的设计方案和地面验证结果。高分多模卫星入轨以后,对大气同步校正仪的大气参数反演效果和高分辨率图像的校正效果进行了分析,结果表明利用大气同步校正仪测量数据对大气气溶胶光学厚度(AOD)和大气水汽含量(CWV)的反演结果可信,对高分辨率图像有较好的大气校正效果。The high-resolution multi-mode satellite(GFDM)is equipped with China’s first civil-using Synchronization Monitoring Atmosphere Corrector(SMAC).This satellite can acquire the atmospheric parameters of the same observation area of the high-resolution camera and achieve accurate correction for the image taken by the high-resolution camera.This study discusses the overall design ideas of synchronization atmospheric correction for high-resolution multi-mode satellites.The design schemes of time-space synchronization,multispectrum,multi-polarization channel detection system,and the verification results on ground and on orbit are presented.GFDM satellite has the capability of rapid attitude maneuvering.Thus,it can realize efficient and flexible observation of ground targets,which greatly improves its imaging efficiency.However,this feature also brings new requirement for the assurance of the quality of the highresolution images obtained by the satellite.When the satellite takes photograph at a larger angle,the atmospheric transmission path of light from ground observing target increases.This condition will cause greater impact on the image’s modulation transfer function and different adjacent pixel effect compared with the situation of sub-satellite point viewing.GFDM satellite adopts a space-ground integrated atmospheric synchronization correction solution to obtain remote sensing image data products with high radiation accuracy and high commercial value.SMAC is equipped on GFDM to obtain atmospheric detecting data that strictly match the image obtained by the highresolution camera temporally and spatially.The spectrum band and polarization channel design and the key performance control measures of SMAC during its manufacturing process fully consider the subsequent ground atmospheric retrieval requirements.The ground atmospheric retrieval algorithm also considers the design properties of SMAC.Through this cooperation between the two important processes,more accurate atmospheric parameters can be provided for the at

关 键 词：遥感 大气校正 总体设计 在轨验证 偏振 气溶胶光学厚度 大气水汽含量 

分 类 号：P407[天文地球—大气科学及气象学]