面向全球变化探测的月基对地观测覆盖性能分析  

Coverage Performance Analysis of Earth Observation from Lunar Base for Global Change Detection

作　　者：丁翼星[1,2,3] 郭华东[2] 刘广[2] 

机构地区：[1]中国科学院电子学研究所,北京100190 [2]中国科学院遥感与数字地球研究所,北京100094 [3]中国科学院大学,北京100039

出　　处：《湖南大学学报（自然科学版）》2014年第10期96-102,共7页Journal of Hunan University:Natural Sciences

基　　金：国家重点基础研究发展计划项目(2009CB723906);国家自然科学基金资助项目(60972141);中国科学院战略性先导科技专项课题资助项目(XDA04077200)

摘　　要：从全球变化的空间观测需求出发,设想了一个依靠载人月球基地的对地观测望远镜,通过模拟地球静止轨道,太阳轨道和月球轨道,利用逐点计算法,从空间、时间和角度三个方面分析月球对地观测的覆盖特点,同时与现有的静止轨道卫星和日地L1点对地观测作比较.分析结果表明,月基对地观测具有良好的时空覆盖性能,尤其是角度覆盖度优点突出,有助于完善多角度遥感以及全球能量平衡观测系统.Based on the observation requirement of global change study,the point-by-point method was used to calculate the coverage indicators on the basis of orbit simulation and spherical ground triangulation. Then,a comparison was made among three platforms in space：Geostationary satellite,the Moon and the Earth-Sun L1 point.The result has shown that,though the temporal-spatial coverage from the Moon is only a little larger than that from Geostationary orbit,the moon offers a much better angular coverage, which is of great significance to the multi-angle remote sensing and the observation system to detect the Earth＇s energy balance.

关 键 词：对地观测 遥感 月球基地 全球变化 轨道覆盖 

分 类 号：TP702[自动化与计算机技术—检测技术与自动化装置]