Keywords Mobile Geospatial Information Service;Geospatial Information Communication;Geospatial Cognization;Scalable Coding;Streaming spatial Data;Linear Quadtree;Grid Index;Data Declustering Methods;

• 空间信息移动服务;空间信息传输;空间认知;可伸缩性编码;空间流媒体;线性四叉树;网格索引;数据分布方法;