基于GeoSOT网格的“天绘一号”卫星影像数据组织

目前“天绘一号”卫星数据按自身行业特点, 建立具有自身特点的空间数据组织方式与记录方式的信息组织系统, 存在不便于跨部门间数据的检索、共享和整合困难, 本文提出了基于地球剖分框架GeoSOT的天绘影像数据组织模型, 并在尽量不改变现有的天绘数据组织的前提下, 通过在天绘数据库编目中增加剖分索引的方式, 实现天绘影像数据全球“虚拟一张网”的数据组织。通过试验证明, 在现有天绘影像数据组织的基础上, 进行剖分组织改造代价不大且数据整合效率显著。

Mapping Satellite-1 remote sensing data organization based on GeoSOT

At present, there is own image organization model and recording mode for Mapping Satellite-1 data organization systems. However, due to the various data organization standards between departments, it is diffi cult for inter-departmental to retrieve, share and integrate remote sensing data. Therefore, this paper puts forward Mapping Satellite-1 image data organization model based on cells and its codes of GeoSOT (Geographical coordinate Subdividing grid with One dimension integer coding on 2n-Tree). To establish virtual one grid for Mapping Satellite-1 remote sensing data by adding a subdivision index in inventory database, which does not change the existing Mapping Satellite-1 data organization. At last, test shows that it costs little to transform the present data organization system and it is signifi cantly to prove data integration effi ciency.