The Comparative Analysis of Point Positioning Using Carrier Phase Smoothed Pseudorange with Various Ephemeris

As the IGS product range and ephemeris accuracy increased,which make ephemeris used in precise point positioning have more choice.This paper analysis of accuracy of IGS ephemeris and broadcast ephemeris,introduced the principle of carrier phase smoothed pseudorange.Focused on analysing of accuracy of point positioning using carrier phase smoothed pseudorange and nosmoothed pseudorange with various ephemeris,this paper show that the positioning accuracy with smoothed pseudorange have improved,and the precision of it by using IGU ephemeris also increased than broadcast ephemeris.