GPS工程控制网坐标系的选择和短边GPS高程精度分析

Choice a system of coordinates of engineering control networks and analyzing the precision of a short distance GPS altitude

从高斯投影理论出发,讨论了工程控制网坐标系的选择问题。提出了一种GPS工程控制网坐标系的选择方法,能够确保建立高精度的工程控制网;同时探讨了短边GPS高程的测量精度,得出了一些有益的结论。

Based on Gauss projection theory,this paperdiscusses the question choosing a system of coor-dinates of engineering control networks,and gives a method of choosing a system of coordinates of GPS engineering control networks,thus ensures that engineering control networks are built in high precision.At the same time this paper discusses the survey precision of a short distance GPS altitude,and draws some beneficial conclusions.