The Earth Radiation Pressure Modelling for Beidou Satellites

Xiaoya Wang, Qunhe Zhao, Kewei Xi, and Xiaogong Hu

Abstract:	In the non-conservative driving force of satellites, the study of solar radiation pressure model has progressed rapidly, and the research on the earth radiation pressure is relatively lacking. In the high precision orbit determination, the impact of earth radiation pressure can’t be ignored for high area-mass ratio satellites such as the navigation satellite. In this paper, the principle and influence mechanism of earth radiation pressure are studied, and the method of modeling the earth radiation pressure perturbation is discussed. According to the characteristics of Beidou satellite navigation system, the reflectivity of the surface of the earth and the distribution data of infrared emissivity are used to establish accurate earth radiation pressure model. The model for BDS satellites was verified and the accuracy and reliability of BDS satellites’ orbit were evaluated by the global MGEX station observation data and regional monitoring station data. The experimental results show that the average 1D-RMS of the orbit is decreases by about 4 mm for the ERPM2 model and 2 mm for the ERPM1 model respectively, which orbit accuracy of several satellites has been improved up to 5 ~ 10 mm. The results of SLR validation show that adding the ERPM2 model improves the radial tracking of the Beidou MEO satellite orbit by 3.1 cm and improves the radial tracking of the GPS 036 satellite orbit by 0.8 ~ 1.4 cm. As a result, the earth radiation pressure model in the precision orbit determination of Beidou navigation satellites need to be paid attention.
Published in:	Proceedings of the 31st International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2018) September 24 - 28, 2018 Hyatt Regency Miami Miami, Florida
Pages:	1703 - 1709
Cite this article:	Wang, Xiaoya, Zhao, Qunhe, Xi, Kewei, Hu, Xiaogong, "The Earth Radiation Pressure Modelling for Beidou Satellites," Proceedings of the 31st International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2018), Miami, Florida, September 2018, pp. 1703-1709. https://doi.org/10.33012/2018.16095
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In