立足于现有的多源数据资料,利用空间数据融合方式进行空间数据的生产和更新。在阐述总体方案的基础上,按技术流程依次介绍了每个环节的处理内容和方法:通过多源数据分析评定确定数据的使用方案,通过空间数据集成消除多源数据间的差异,通过空间数据匹配建立同名实体在不同数据集中的对应关系,通过数据融合和更新派生得到更好的新数据。实验证明该方式生产周期短,有效可靠。
Based on the existing multi-sources spatial data, the paper applies a spatial data fusion tech- nique to the production and updating of spatial data. After introducing the general framework and flow, the relevant contents and methods are specified sequentially in detail. This spatial data applica- tion strategy is made after data analysis and assessment. Then, the differences among multi-sources spatial data are eliminated through the spatial data integration, and the relationships of homologous entities are built through spatial data matching. At last, after data fusion and updating, the new spatial data with high usability is achieved. The efficient and reliability of this method are demonstrated through practical production.