Experimental research of GPS pseudo-range differential position
Lan Xiao-qi · 2004
The theory and mathematical model for GPS pseudo-range differential position are discussed, and related software is compiled for research on the precision of pseudo-range differential position. A great deal of calculation based on the observed data from a GPS network shows that the precision of differential position is almost the same for three kinds of pseudo-range observed data, and that within a range of 50?km away from the base station, the precision of pseudo-range differential position for the observation time lasting 10～60 seconds can reach 02～04?m. The technique can be widely applied to marine position and GIS data acquisition.