Accuracy of BDS Satellite Orbit Prediction Based on SDP4 Model
Abstract Using two-line element (TLE) ephemeris combined with SDP4 model, we predict the 30-day orbits of BDS IGSO, GEO and MEO satellites. We evaluate the orbit prediction errors using GFZ precise ephemeris. Then, we compare the orbit prediction errors of this method with the orbit prediction errors of broadcast ephemeris and almanac. The results show that the orbit prediction accuracy of our method is significantly better than that of broadcast ephemeris and almanac.
Key words :
BDS satellites
orbit prediction
TLE
SDP4 model
accuracy
Cite this article:
WANG Jingjing,ZHOU Chao,LIU Xiangfa et al. Accuracy of BDS Satellite Orbit Prediction Based on SDP4 Model[J]. jgg, 2023, 43(8): 786-790.
WANG Jingjing,ZHOU Chao,LIU Xiangfa et al. Accuracy of BDS Satellite Orbit Prediction Based on SDP4 Model[J]. jgg, 2023, 43(8): 786-790.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2023/V43/I8/786
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