局部似大地水准面精化技术在地下管线测绘中的应用  

The Application of the Accuracy Quasi-geodic Surface Technique on the Surverying of Underground Pipeline

作　　者：王真义 

机构地区：[1]上海茗川测绘技术有限公司工程部,上海201100

出　　处：《北京测绘》2009年第4期56-60,共5页Beijing Surveying and Mapping

摘　　要：在介绍似大地水准面精化技术的的基础上,论证了在上海西部郊县地区应用GPS水准法确定区域似大地水准面的可行性,并通过确定上海嘉定、青浦两区的似大地水准面证明了用GPS水准法确定的似大地水准面精度可满足地下管线测绘工作的需要。On the basis of introducing the accuracy quasi-geodic surface technique, the possibility of surveying regional quasigeodic surface by the GPS-leveling technique in the west county of shanghai is discussed in the paper. It is proved that the precision of quasi-geodic can meet the demand of the underground pipeline-surveying project by computing the quasi-geodic in jiading and qingpu county of shanghai.

关 键 词：GPS/水准 二次曲面拟合 似大地水准面 

分 类 号：P258[天文地球—测绘科学与技术]