FY-4卫星高光谱大气探测驻留控制与定位精度分析  

Resident and Navigation Accuracy Analysis of Interferometric Infrared Sounder Onboard FY-4 Satellite

作　　者：商建 刘成保[4] 杨磊 黄攀[5,6] 王静 张志清[1,2,3] 王田野 韩昌佩 曹赟[1,2,3] 王嘉琛 耿同 SHANG Jian;LIU Chengbao;YANG Lei;HUANG Pan;WANG Jing;ZHANG Zhiqing;WANG Tianye;HAN Changpei;CAO Yun;WANG Jiachen;GENG Tong(National Satellite Meteorological Center(National Centre for Space Weather),Beijing 100081,China;Innovation Center for FengYun Meteorological Satellite(FYSIC),Beijing 100081,China;Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites,CMA,Beijing 100081,China;Technology and Engineering Center for Space Utilization,Chinese Academy of Sciences,Beijing 100094,China;Beihang University,Beijing 102206,China;CASIC Research Institute of Intelligent Decision Engineering,Wuhan 430040,China;Institute of Software Chinese Academy of Sciences,Beijing 100190,China;Shanghai Institute of Satellite Engineering,Shanghai 201109,China;Shanghai Institute of Technical Physics,Chinese Academy of Sciences,Shanghai 200083,China)

机构地区：[1]国家卫星气象中心(国家空间天气监测预警中心),北京100081 [2]许健民气象卫星创新中心,北京100081 [3]中国气象局遥感卫星辐射测量和定标重点开放实验室,北京100081 [4]中国科学院空间应用工程与技术中心,北京100094 [5]北京航空航天大学,北京102206 [6]航天科工智能运筹与信息安全研究院(武汉)有限公司,武汉430040 [7]中国科学院软件研究所,北京100190 [8]上海卫星工程研究所,上海201109 [9]中国科学院上海技术物理研究所,上海200832

出　　处：《遥测遥控》2024年第6期I0002-I0002,1-10,共11页Journal of Telemetry,Tracking and Command

基　　金：国家重点研发计划(2021YFB3900400,2021YFB3900402);中国气象局青年创新团队(CMA20240N10)。

摘　　要：静止轨道干涉式大气垂直探测仪装载在中国新一代静止轨道气象卫星风云四号上,是世界上第一个运行在静止轨道上的高光谱垂直探测仪器。在高光谱探测过程中,使“驻留”观测的目标保持高精度稳定是静止轨道高光谱红外大气探测的关键。风云四号卫星是我国高轨气象卫星首次采用三轴稳定姿态控制平台的卫星,这给探测仪的高精度定位带来很大挑战。高精度的观测计划稳定性需要卫星平台、姿态控制、有效载荷和地面系统共同完成,过程非常复杂。本文在介绍探测仪的探测原理和工作模式设计的基础上,对探测仪星地一体化定位的关键技术进行研究,并利用仪器在轨获得的实测数据对驻留控制精度与定位精度开展检验及分析。结果表明,探测仪达到了1/10像元的驻留控制精度与1像元的定位精度。The high-precision navigation of the remote sensing instruments onboard FengYun-4(FY-4)geostationary meteorological satellite is the basis for instrument calibration,product retrieval,and quantitative application.The geosynchronous interferometric infrared sounder(GIIRS)onboard FY-4 satellite,the new generation geostationary meteorological satellite in China,is the first hyperspectral vertical detector operating in the geostationary orbit in the world.In the process of hyperspectral detection,it is key to keep the"resident"observation target stable with high precision.The FY-4 satellite uses an advanced three-axis stable attitude control platform,which brings great flexibility to earth observation and great challenges to the high-precision navigation of the GIIRS.The stability of the high-precision observation target requires the cooperation of satellite platform,attitude control,the instrument and the ground system,which process is very complicated.Based on the introduction of the detection principle and working mode design of the GIIRS,the key technology of satellite-ground integrated navigation is researched.The resident accuracy as well as the navigation accuracy are tested and analyzed using the measured data from the GIIRS in orbit.The results show that the GIIRS achieves a resident accuracy of 1/10 pixel and a navigation accuracy of 1 pixel,laying a good foundation for quantitative applications including numerical weather prediction.

关 键 词：星地一体化定位 三轴稳定 静止轨道卫星 大气垂直探测仪 风云四号 

分 类 号：P41[天文地球—大气科学及气象学] P123