Study of data processing methods for GPS Precise point positioning
Ding Xi-jie · Engineering of Surveying and Mapping · 2008
In the data processing of GPS precise point positioning,the un-difference method is used commonly.However,observations can be different in order to decrease some unknown parameters.The different approach is mathematically equivalent to un-differene approach in theory.This paper introduces several data processing methods,including un-difference model and difference model,and draws some conclusions from the present paper.