城市GPS控制网建立中的几个问题

Reconstruction of Urban Control Network with GPS

本文对城市控制网扩建中普遍遇到的新旧控制网的衔接、旧网起算数据误差与新网高精度的矛盾、投影变形等问题进行了综合分析 ,提出了具体解决方法和途径 ,并通过实例证明解决方法和途径的正确性。

This paper gives a comprehensive analysis on the common problems occurred in urban control network reconstruction,such as the connection of the new net and the old one,projection deformation.The methods and approaches to solve that are given.