“高分七号”高精度光学立体测绘卫星实现途径研究  

Study on the Development Approach of GF-7 High Precision Optical Stereo Mapping Satellite

作　　者：曹海翊[1] 戴君[1] 张新伟[1] 赵晨光[1] 刘付强[1] 国爱燕[1] 徐驰 CAO Haiyi;DAI Jun;ZHANG Xinwei;ZHAO Chenguang;LIU Fuqiang;GUO Aiyan;XU Chi(Beijing Institute of Spacecraft System Engineering,Beijing 100094,China)

机构地区：[1]北京空间飞行器总体设计部,北京100094

出　　处：《航天返回与遥感》2020年第2期17-28,共12页Spacecraft Recovery & Remote Sensing

基　　金：国家重大科技专项工程。

摘　　要："高分七号"(GF-7)卫星是中国首颗民用亚米级高分辨率光学传输型立体测绘卫星,于2019年11月3日在太原卫星发射中心发射升空。卫星能够获取高空间分辨率立体测绘遥感数据和高精度激光测高数据,可用于1∶1万比例尺立体测图。文章首先简述了国内外光学立体测绘卫星的发展概况,然后分析了GF-7卫星的实现途径,最后重点介绍了GF-7卫星及其有效载荷的技术特点和创新点,并简要介绍了卫星在轨数据初步应用情况,为后续同类测绘卫星的系统设计提供参考。GF-7 satellite is China’s first civilian high resolution stereo mapping satellite with the GSD(Ground Sampling Distance)in sub-meter.It was successfully launched on November 3 rd,2019.The mission of GF-7 is to provide high resolution stereo images and laser altimetry data for generating 1 to 10000 scale-based maps over china.In this paper,the development of optical stereo surveying and mapping satellites at home and abroad is briefly introduced,and then the realization ways of GF-7 satellite are analyzed.Finally,the technical characteristics and innovations of GF-7 satellite and its payloads are mainly introduced.Based on the on-orbit data,the preliminary applications of GF-7 are evaluated.The result can be useful to the system design of other similar stereo mapping satellites.

关 键 词：双线阵相机 激光测高仪 1∶1万比例尺 “高分七号”卫星 

分 类 号：V443.5[航空宇航科学与技术—飞行器设计]