Abstract:In this paper, we determine precise orbit and clock of Beidou-3 experimental satellites based on data from several tracking networks. The results indicate that the orbit overlap accuracy in radial direction of Beidou-3 experimental satellites is better 7.0 cm for IGSO satellites and 5.3 cm for MEO satellites, respectively, which is equivalent to that of the Beidou-2 of non-GEO satellites. In addition, solutions of static precise point positioning (PPP) show that better than 1 cm in horizontal and 2.6 cm in vertical direction can be achieved when orbit and clock products of the Beidou-3 experiential satellites are included. Compared to the Beidou-2 only PPP solutions, the results are improved by 0.5 cm and 1.2 cm respectively, and speed up the convergence rate, reducing convergence time by about 2 h 35 min.
GUO Huijun,GUO Jing,ZHAO Qile et al. Precise Orbit Determination for Beidou-3 Experimental Satellites and Its Impact on PPP[J]. jgg, 2017, 37(12): 1263-1267.