对地观测技术的发展历史、现状及应用

本文介绍了对地观测技术的历史和现状,并针对部分国家(美国、法国、日本、中国)的对地观测技术的发展现状和策略进行分析。美国EOS计划和ESE计划的实施极大地推动了对地观测技术的发展,同时也推动对地球科学事业的发展;法国以高分辨率SPOT卫星系列为其对地观测技术的特色;日本制定了对地观测技术的基本发展策略;中国作为发展中国家,在对地观测技术方面的发展起步较晚,但发展势头迅猛。此外,笔者以滑坡灾害系统为例说明了对地观测技术在地球系统科学研究中的应用及技术优势。

Dynamic segmenting method of multi - satellites cooperative observation for polygon

The coordinating multi-satellites observing of polygon targets was studied in the paper.An ameliorative method of segmenting polygon target was proposed based on the range of satellites'observation on targets by different angles.During the segmenting,the solid geometry was used to count the range,and the factors such as sensor geometry and path of aviation were considered in the method.MapInfo was used to count the rate of the range of satellites'observation on targets.Experiments showed that this approach could improve the efficiency of the polygon target observing.