GPS测定正高的方法及误差分析  

GPS Orthometric Height Survey Method and Error Analysis

作　　者：谢世杰 李天和[2] 冯大福[2] 

机构地区：[1]总参测绘局,北京100088 [2]重庆工程职业技术学院,重庆400037

出　　处：《地矿测绘》2005年第2期1-3,7,共4页Surveying and Mapping of Geology and Mineral Resources

摘　　要：GPS测出的椭球高,必须将其改化为常用的正高才能用于测绘工程。基于此,扼要提出应用重力大地水准面法、几何大地水准面法和综合法将GPS椭球高改化为正高的方法。Ellipsoid height measured by GPS must be transformed into orthometrie height so that it can be used to surveying and mapping engineering. This paper puts forward, in the point, gravimetric geoid method, geometric geoid method and synthesis method to transform ellipsoid height into orthometric height.

关 键 词：椭球高 正高 重力大地水准面 几何大地水准面 

分 类 号：P228.4[天文地球—大地测量学与测量工程]