Analysis of the Impact of SLR Data on Precise Orbit Determination of BeiDou Satellites

doi:10.11947/j.AGCS.2018.20180293

Abstract

Abstract: Besides microwave tracking data, satellite laser ranging (SLR) tracking data of BeiDou Satellites can also be obtained. In order to improve the accuracy and consistency of precise satellite orbit product and analysis the impact of SLR to BeiDou satellite orbit, combined precise orbit determination of BeiDou satellites based on GNSS and SLR data was proposed in this paper. Combined precise orbit determination was carried out on normal equation level, and the ratio between GNSS and SLR data was 1:1. Data process was carried out using 114 MGEX stations and 26 SLR stations for BeiDou C08,C10 and C11 satellites. The results show that combined SLR data can improve the radial precision of BDS satellites. Compared with GNSS solutions, combined solution has more effect on the orbit precision of BDS MEO satellites than that of BDS IGSO satellites.

Key words: BeiDou navigation satellite system (BDS), combined precise orbit determination, satellite laser ranging(SLR), normal equation

CLC Number:

P228

KONG Yao, ZHANG Xiaozhen, SUN Baoqi, LIU Feng. Analysis of the Impact of SLR Data on Precise Orbit Determination of BeiDou Satellites[J]. Acta Geodaetica et Cartographica Sinica, 2018, 47(S0): 86-92.

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