Effect of Separation of Navigation Satellite Antenna Inter-Frequency Phase Centers on TGD Parameter

  • Jiaxing LiuEmail author
  • Shaojun Bi
  • Jinjun Zheng
  • Jun Xie
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 304)


The geometric separation among the navigation satellite antenna phase centers at different frequencies affects the accuracy of T GD measurement. According to the measurement and utilization method of T GD parameter, this paper establishes the relational model between the parameter and the satellite inter-frequency phase center separation. Whereas the relative motion of the satellite, the monitor station and the sun has a performance of complex diversity, this paper obtains an approximate expression of T GD estimating error about phase center separation, along with its effect on user ranging accuracy. Afterwards in the condition of single-station monitoring and double-station monitoring, the maximum T GD error is respectively deduced based on the worst geometry between the satellite and the station(s). Simulations result in numerical values and variation trends of the maximum T GD error with phase center separation. The work could be used in theoretical analysis and estimation of navigation accuracy, and also in design and manufacture of navigation satellites and monitor stations.


Inter-frequency phase center separation TGD estimating error User ranging accuracy Single-station monitoring Double-station monitoring 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Jiaxing Liu
    • 1
    Email author
  • Shaojun Bi
    • 1
  • Jinjun Zheng
    • 1
  • Jun Xie
    • 1
  1. 1.Institute of Spacecraft System Engineering, CASTBeijingChina

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