城市高精度3维控制网的建立与实施

Establishment and Implementation of Urban High Precision Three-Dimensional Control Network

随着似大地水准面精化技术的成熟及应用,建立适合我国的城市现代高精度3维控制网已变得简单容易。本文介绍了基于GPS、水准、现代地球重力场理论和方法,建立集平面、高程、重力场信息于一体的综合性城市现代高精度3维控制网的方法与实施过程,从而为动态的、实时的高精度3维测量提供测绘保障。

Along with the application of mature technologies on refining quasi -geoid, the establishment of urban modem high -precision 3D control network which is suitable to our country already becomes easier and simpler. This article introduced the methods and the implementation process of the establishment of the urban modem high -precision 3D control network combining plane, elevation with gravity field information based on GPS,leveling,the modem theory and methods of the Earth＇s gravity field. Thus it provided protection for dynamic, real - time, and high - precision three - dimensional measurement.