GPS Orthometric Height Survey Method and Error Analysis
XIE Shi-ji~1, LI Tian-he~2, FENG Da-fu~2(1.Surveying and Mapping Bureau of the Headquarters of the General Staff of PLA, Beijing 100088, China; 2.Chongqing Engineering Professional Technical College, Chongqing 400037, China)
Ellipsoid height measured by GPS must be transformed into orthometric 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.
【CateGory Index】： P228.4