数字城市空间数据基础设施的研究  

Research on Spatial Data Infrastructure of Digital City

作　　者：蔡建德 

机构地区：[1]河南省测绘产品质量监督站,河南郑州450003

出　　处：《北京测绘》2007年第4期42-44,41,共4页Beijing Surveying and Mapping

摘　　要：研究利用现代大地测量的高新技术手段,在城市原有的坐标资料和水准、重力资料的基础上,建立平面、高程、重力场信息于一体的综合性高精度城市三维基础控制网,结合城市连续运行卫星定位服务系统(CORS)和高精度似大地水准面提高城市空间数据基础设施建设的水平。指出了建立连续运行卫星定位服务系统和高精度似大地水准面的途径及有关问题。With the research and application of new technology of modern geodetic surveying,based on original coordinate materials and level gravimetric materials of the city, an high- accuracy urban 3D basic control map integrated with plane,elevation and gravity field is constructed.Combining urban continuous operational satellite positioning service system with high-accuracy quasigeoid,the urban spatial data infrastructure constructive level will be improved.In this paper,it is presented the method and problem of constructing the continuous operational satellite positioning service system and the high-accuracy quasigeoid.

关 键 词：似大地水准面 GPS CORS 大地水准面精化 RTK 

分 类 号：P228.4[天文地球—大地测量学与测量工程]