空间数据质量控制及检验

文章简述了地理信息系统空间数据产品的类型及其生产的工艺流程,系统分析了影响空间数据质量的各种误差因素和控制空间数据生产质量的主要内容,给出了空间数据生产的质量控制和检验的方法。最后结合实例着重介绍了空间数据的精度检测和统计分析结果,提出了利用不同类型空间数据的叠加来检测数据相对精度,并能有效地削弱空间数据误差进而提高空间数据质量的方法。

Quality control and inspection of spatial data

The types of spatial data products in the geographical information system are introduced,and the technological process of spatial data processing is described. The errors that influence the quality of spatial data is analyzed,and the major content of the quality of spatial data introduced. The methods for the quality control and inspection in the processing of spatial data are proposed. With a practical example,the accuracy inspection and statistical analysis of spatial data are discussed. And by means of superimposition of the different types of spatial data, the relative accuracy of the data can be inspected and the errors reduced effectively so that the quality of the spatial data is improved.