GNSS World of China

Volume 45 Issue 4
Aug.  2020
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GAO Yang, ZHANG Qiang, ZHANG Longping. The optimal configuration and simulation of BDS GEO satellites precise orbit determination[J]. GNSS World of China, 2020, 45(4): 109-113. doi: 10.13442/j.gnss.1008-9268.2020.04.017
Citation: GAO Yang, ZHANG Qiang, ZHANG Longping. The optimal configuration and simulation of BDS GEO satellites precise orbit determination[J]. GNSS World of China, 2020, 45(4): 109-113. doi: 10.13442/j.gnss.1008-9268.2020.04.017
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The optimal configuration and simulation of BDS GEO satellites precise orbit determination

doi: 10.13442/j.gnss.1008-9268.2020.04.017
  • 1.

    Beijing Satellite Navigation Center, Beijing 100094, China

  • 2.

    Center for Science Communication and Achievement Transformation, National Natural Science Foundation of China, Beijing 100085, China

  • 3.

    Piesat Information Technology Co.,Ltd, Beijing 100195, China

  • Publish Date: 2020-08-15
    Abstract
  • The BDS-3 GEO satellites provide a number of unique services, but the accuracy of its precise orbit determination is poor. In addition to high altitude and constant position, the monitoring stations configuration is also an important factor of GEO satellites orbit determination. Firstly, the basic principle of orbit determination is introduced and the observation equation is linearized in this paper. Secondly, The GDOP value is parameterized by using orthogonal trigonometric functions and expressed in the configuration of the monitoring stations. Thirdly, the relationship between stations configuration and the accuracy of precise orbit determination is analyzed according to nested cones. Finally, the simulation experiments are carried out, and a kind of optimal solution is concluded.

     

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