Skip to main content
SpringerLink
Log in

Satellite-station time synchronization information based real-time orbit error monitoring and correction of navigation satellite in Beidou System

  • Article
  • Published:
Science China Physics, Mechanics & Astronomy Aims and scope Submit manuscript

Abstract

Satellite-station two-way time comparison is a typical design in Beidou System (BDS) which is significantly different from other satellite navigation systems. As a type of two-way time comparison method, BDS time synchronization is hardly influenced by satellite orbit error, atmosphere delay, tracking station coordinate error and measurement model error. Meanwhile, single-way time comparison can be realized through the method of Multi-satellite Precision Orbit Determination (MPOD) with pseudo-range and carrier phase of monitor receiver. It is proved in the constellation of 3GEO/2IGSO that the radial orbit error can be reflected in the difference between two-way time comparison and single-way time comparison, and that may lead to a substitute for orbit evaluation by SLR. In this article, the relation between orbit error and difference of two-way and single-way time comparison is illustrated based on the whole constellation of BDS. Considering the all-weather and real-time operation mode of two-way time comparison, the orbit error could be quantifiably monitored in a real-time mode through comparing two-way and single-way time synchronization. In addition, the orbit error can be predicted and corrected in a short time based on its periodic characteristic. It is described in the experiments of GEO and IGSO that the prediction accuracy of space signal can be obviously improved when the prediction orbit error is sent to the users through navigation message, and then the UERE including terminal error can be reduced from 0.1 m to 0.4 m while the average accuracy can be improved more than 27%. Though it is still hard to make accuracy improvement for Precision Orbit Determination (POD) and orbit prediction because of the confined tracking net and the difficulties in dynamic model optimization, in this paper, a practical method for orbit accuracy improvement is proposed based on two-way time comparison which can result in the reflection of orbit error.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Jiao W H, Ding Q, Li J W, et al. Monitoring and assessment of GNSS Open Services (in Chinese). Sci Sin-Phys Mech Astron, 2011, 41(5): 521–527

    Article  Google Scholar 

  2. Zhou S S. Studies on Precise Orbit Determination Theory and Application for Satellite Navigation System with Regional Tracking Network (in Chinese). Dissertation for Doctoral Degree. Shanghai: Shanghai Astronomical Observatory, 2006. 2–4

    Google Scholar 

  3. Mao Y, Du Y, Song X Y, et al. GEO and IGSO joint precise orbit determination. Sci China-Phys Mech Astron, 2011, 54(6): 1009–1013

    Article  ADS  Google Scholar 

  4. Guo R, Hu X G, Tang B, et al. Precise orbit determination for geostationary satellites with multiple tracking techniques. Chin Sci Bull, 2010, 55(8): 687–692

    Article  Google Scholar 

  5. Li Z G, Yang X H, Shi H L, et al. A new method for determination of satellite orbits by transfer. Sci China Ser G-Phys Mech Astron, 2009, 52(3): 384–392

    Article  ADS  Google Scholar 

  6. Cao Y L, Hu X G, Wu B, et al. The wide-area difference system for the regional satellite navigation system of COMPASS. Sci China-Phys Mech Astron, 2012, 55(7): 1307–1315

    Article  ADS  Google Scholar 

  7. Zhou S S, Hu X G, Wu B, et al. Orbit determination and time synchronization for a GEO/IGSO satellite navigation constellation with regional tracking network. Sci China-Phys Mech Astron, 2011, 54(6): 1089–1097

    Article  ADS  Google Scholar 

  8. Liu L, Zhu L F, Han C H, et al. The model of two-way radio time transfer between the earth and satellites and analysis of its experiment (in Chinese). Acta Astron Sin, 2009, 50(2): 189–196

    ADS  Google Scholar 

  9. Montenbruck O. ANTEX considerations for multi-GNSS work. Antenna WG Meeting, IGS Workshop, 2012. 235–240

    Google Scholar 

  10. Zhou S S, Cao Y L, Zhou J H, et al. Accuracy analyses of precise orbit determination and timing for COMPASS/Beidou-2 4GEO/5IGSO/4MEO Constellation. Sci China-Phys Mech Astron, 2012, 55(12): 2290–2299

    Article  ADS  MathSciNet  Google Scholar 

  11. Tang G f, Shi X, Guo R, et al. The research for time synchronization system error integrating calculation (in Chinese). 2nd China Satellite Navigation reference Workshop, 2011. 342–347

    Google Scholar 

  12. Chen L C, Hu X G, Chang Z Q, et al. The broadcast ephemeris design of high orbit navigation satellite (in Chinese). Sci Sin-Phys Mech Astron, 2010, 40(5): 608–615

    Google Scholar 

  13. He F, Wang G, Liu L, et al. Ephemeris fitting and experiments analysis of GEO satellite (in Chinese). Acta Geod Cartogr Sin, 2011, 40(Suppl): 52–58

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai, 200030, China

    Feng He, ShanShi Zhou & XiaoGong Hu

  2. Graduate University of Chinese Academy of Sciences, Beijing, 100049, China

    Feng He

  3. Beijing Satellite Navigation Center, Beijing, 100094, China

    Feng He, JianHua Zhou, Li Liu, Rui Guo, XiaoJie Li & Shan Wu

Authors
  1. Feng He
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. ShanShi Zhou
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. XiaoGong Hu
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. JianHua Zhou
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Li Liu
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. Rui Guo
    View author publications

    You can also search for this author in PubMed Google Scholar

  7. XiaoJie Li
    View author publications

    You can also search for this author in PubMed Google Scholar

  8. Shan Wu
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to JianHua Zhou.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

He, F., Zhou, S., Hu, X. et al. Satellite-station time synchronization information based real-time orbit error monitoring and correction of navigation satellite in Beidou System. Sci. China Phys. Mech. Astron. 57, 1395–1403 (2014). https://doi.org/10.1007/s11433-014-5412-6

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11433-014-5412-6

Keyworeds

Search

Navigation