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Estimate DCB of BDS Satellites Based on the Observations of GPS/BDS

  • Chuanjun WeiEmail author
  • Qin Zhang
  • Lihong Fan
  • Shuangcheng Zhang
  • Guanwen Huang
  • Kejie Chen
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 304)

Abstract

In single frequency precise point positioning, satellite’s DCBs is one of the main factors impacting the positioning accuracy. In the consideration of BDS navigation system has not completed and the limited distribution of regional monitoring network, these adverse condition make it is hard to estimate the DCBs accuracy. So put forward using GPS rice data to estimate the DCB of BDS satellite by make a global ionosphere model using the observations of GPS and BDS. In this paper the strategy of estimate the DCB of BDS satellite is discussed in detail. Further analysis showed that the stability of BDS satellite’s DCBs is about 0.15 ns at 1 month. In order to further validate the precision of DCB of BDS satellites from this strategy, used BDS single frequency observations to position with the correct of BDS satellite’s DCB or without it. Compared with no DCBs correction, single-frequency user’s positioning accuracy is improved from 47% to 63% by using DCBs correction from the algorithm.

Keywords

BDS GPS Combined Solution Ionosphere Differential code bias 

References

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Chuanjun Wei
    • 1
    Email author
  • Qin Zhang
    • 1
  • Lihong Fan
    • 1
  • Shuangcheng Zhang
    • 1
  • Guanwen Huang
    • 1
  • Kejie Chen
    • 2
  1. 1.College of Geology Engineering and GeomaticsChang’an UniversityXi’anChina
  2. 2.GFZ German Reasearch Centre for GeosciencesPotsdamGermany

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