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

作　　者：李秀海[1] 尚国学 杜国明 

机构地区：[1]黑龙江工程学院测绘工程系,黑龙江哈尔滨150008 [2]沈阳农垦建设集团,辽宁沈阳110041 [3]鞍钢大孤山铁矿,辽宁鞍山114046

出　　处：《测绘工程》2003年第2期56-58,共3页Engineering of Surveying and Mapping

摘　　要：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.

关 键 词：GPS工程控制网 坐标系 高斯投影理论 测量精度 全球定位系统 长度变形 

分 类 号：P228.4[天文地球—大地测量学与测量工程]