超高压送电线路GPS外控测量中高程的确定  

Choice of Geoidal Model in GPS Survey of Transmission Line

作　　者：程正逢[1] 

机构地区：[1]中南电力设计院,湖北武汉430071

出　　处：《地理空间信息》2005年第6期6-8,共3页Geospatial Information

摘　　要：GPS已经被广泛地运用并已发展成为一个真正的三维测量工具,然而测高问题仍然是GPS领域亟待研究解决的问题。就长距离超高压送电线路工程的GPS测量中如何选择大地水准面模型,如何确定GPS测量的高程等问题进行了讨论。GPS is widely used, and it has been developed to turn into a really three-dimension survey tool. But normal height determination is a urgently problem to be settled. This paper has discussed how to select geoidal model and how to determine normal height in GPS survey of long distance transmission line project.

关 键 词：GPS外控测量 水准面模型 椭球高 正常高 

分 类 号：P228.42[天文地球—大地测量学与测量工程]