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, 22:43 | Cite as

Performance of the BDS3 experimental satellite passive hydrogen maser

  • Ziqian Wu
  • Shanshi Zhou
  • Xiaogong Hu
  • Li Liu
  • Tao Shuai
  • Yonghui Xie
  • Chengpan Tang
  • Junyang Pan
  • Lingfeng Zhu
  • Zhiqiao Chang
GNSS In Progress
  • 267 Downloads

Abstract

Various types of onboard atomic clocks such as rubidium, cesium and hydrogen have different frequency accuracies and frequency drift rate characteristics. A passive hydrogen maser (PHM) has the advantage of low-frequency drift over a long period, which is suitable for long-term autonomous satellite time keeping. The third generation of Beidou Satellite Navigation System (BDS3) is equipped with PHMs which have been independently developed by China for their IGSO and MEO experimental satellites. Including Galileo, it is the second global satellite navigation system that uses PHM as a frequency standard for navigation signals. We briefly introduce the PHM design at the Shanghai Astronomical Observatory (SHAO) and detailed performance evaluation of in-orbit PHMs. Using the high-precision clock values obtained by satellite-ground and inter-satellite measurement and communication systems, we analyze the frequency stability, clock prediction accuracy and clock rate variation characteristics of the BDS3 experimental satellites. The results show that the in-orbit PHM frequency stability of the BDS3 is approximately 6 × 10−15 at 1-day intervals, which is better than those of other types of onboard atomic clocks. The BDS3 PHM 2-, 10-h and 7-day clock prediction precision values are 0.26, 0.4 and 2.2 ns, respectively, which are better than those of the BDS3 rubidium clock and most of the GPS Block IIF and Galileo clocks. The BDS3 PHM 15-day clock rate variation is − 1.83 × 10−14 s/s, which indicates an extremely small frequency drift. The 15-day long-term stability results show that the BDS3 PHM in-orbit stability is roughly the same as the ground performance test. The PHM is expected to provide a highly stable time and frequency standard in the autonomous navigation case.

Keywords

PHM Atomic clock BDS3 TWSTFT Allan variance Clock prediction ISL 

Notes

Acknowledgements

The IGS and GFZ are greatly acknowledged for providing the GNSS products. The authors are grateful for the comments and remarks of the reviewers and editors, which helped to improve the manuscript. This work was supported by the National key Research Program of China “Collaborative Precision Positioning Project” (Grant No. 2016YFB0501900), the National Natural Science Foundation of China (Grant No. 41574029), the Youth Innovation Promotion Association CAS (Grant No. 2016242) and Shanghai Science and Technology Committee Foundation (Grant No. 16511103003).

References

  1. Allan DW (1987) Time and frequency (Time-Domain) characterization, estimation, and prediction of precision clocks and oscillators. IEEE Trans Ultrason Ferroelectr Freq Control (UFFC) 34(6):647–654.  https://doi.org/10.1109/T-UFFC.1987.26997 CrossRefGoogle Scholar
  2. Gong H, Ni S, Mou W, Zhu X, Wang F (2012). Estimation of COMPASS on-board clock short-term stability. In: Proceedings of European frequency and time forum (EFTF), pp 383–386Google Scholar
  3. Gonzalez Martinez FJ (2014). Performance of new GNSS satellite clocks. Doctor Dissertation. KIT Scientific Publishing, KarlsruheGoogle Scholar
  4. Hackel S, Steigenberger P, Hugentobler U, Uhlemann M, Montenbruck O (2015) Galileo orbit determination using combined GNSS and SLR observations. GPS Solut 19(1):15–25.  https://doi.org/10.1007/s10291-013-0361-5 CrossRefGoogle Scholar
  5. Hauschild A, Montenbruck O, Steigenberger P (2013) Short-term analysis of GNSS clocks. GPS Solut 17(3):295–307CrossRefGoogle Scholar
  6. Liu L, Zhu L, Han C, Liu X, Li C (2009) The model of radio two-way time comparison between satellite and station and experimental analysis. Chin Astron Astrophys 33(4):431–439CrossRefGoogle Scholar
  7. Montenbruck O, Steigenberger P, Schönemann E, Hauschild A, Hugentobler U, Dach R, Becker M (2011). Flight characterization of new generation GNSS satellite clocks. In: Proceedings ION GNSS 2011, Institute of Navigation, Portland OR, USA, 21–23 September, pp 2959–2969Google Scholar
  8. Montenbruck O, Hugentobler U, Dach R, Steigenberger P, Hauschild A (2012) Apparent clock variations of the Block IIF-1 (SVN62) GPS satellite. GPS Solut 16(3):303–313CrossRefGoogle Scholar
  9. Montenbruck O, Hauschild A, Steigenberger P, Hugentobler U, Teunissen P, Nakamura S (2013) Initial assessment of the COMPASS/BeiDou-2 regional navigation satellite system. GPS Solut 17(2):211–222.  https://doi.org/10.1007/s10291-012-0272-x CrossRefGoogle Scholar
  10. Pan J, Hu X, Zhou S, Tang C, Guo R, Zhu L, Tang G, Hu G (2018) Time synchronization of new-generation BDS satellites using inter-satellite link measurements. Adv Space Res.  https://doi.org/10.1016/j.asr.2017.10.004 Google Scholar
  11. Ren X, Yang Y, Zhu J, Xu T (2017) Orbit determination of the next-generation Beidou satellites with intersatellite link measurements and a priori orbit constraints. Space Res, Adv.  https://doi.org/10.1016/j.asr.2017.08.024 Google Scholar
  12. Senior K (2010) SVN62 Clock Analysis using IGS Data, IGSMAIL-6218. http://igscb.jpl.nasa.gov/pipermail/igsmail/2010/000051.html. Accessed 6 Aug 2010
  13. Sesia I (2008) Estimating the Allan variance in the presence of long periods of missing data and outliers. Metrologia 45(6):134–142CrossRefGoogle Scholar
  14. Shuai T, Xie Y (2016) The onboard passive hydrogen maser for navigation satellite. SCIENCE 68(5):11–15 in Chinese Google Scholar
  15. Steigenberger P, Montenbruck O (2017) Galileo status: orbits, clocks, and positioning. GPS Solut 21(2):319–331.  https://doi.org/10.1007/s10291-016-0566-5 CrossRefGoogle Scholar
  16. Steigenberger P, Hugentobler U, Hauschild A, Montenbruck O (2013) Orbit and clock analysis of Compass GEO and IGSO satellites. J Geod 87(6):515–525CrossRefGoogle Scholar
  17. Svehla D (2010). Complete relativistic modelling of the GIOVE-B clock parameters and its impact on POD, track–track ambiguity resolution and precise timing. IGS Workshop 2010, Springer, NewcastleGoogle Scholar
  18. Tang C, Hu X, Zhou S, Guo R, He F, Liu L, Zhu L, Li X, Wu S, Zhao G et al (2016) Improvement of orbit determination accuracy for Beidou navigation satellite system with two-way satellite time frequency transfer. Adv Space Res 58(7):1390–1400CrossRefGoogle Scholar
  19. Uhlemann M, Gendt G, Ramatschi M, Deng Z (2015) GFZ global Multi-GNSS network and data processing results. In: Rizos C, Willis P (eds) IAG 150 Years. International Association of Geodesy Symposia, vol 143. Springer, Cham.  https://doi.org/10.1007/1345_2015_120
  20. Wang B, Lou Y, Liu J, Zhao Q, Su X (2015) Analysis of BDS satellite clocks in orbit. GPS Solut 20(4):783–794CrossRefGoogle Scholar
  21. Wang H, Xie J, Zhuang J, Wang Z (2017) Performance analysis and progress of inter-satellite-link of Beidou system. In: Proceedings of ION GNSS 2017, Portland OR, USA, 25–29 Sept, pp 1178–1185Google Scholar
  22. Yang D, Yang J, Li G, Zhou Y, Tang C (2017) Globalization highlight: orbit determination using BeiDou inter-satellite ranging measurements. GPS Solut.  https://doi.org/10.1007/s10291-017-0626-5 Google Scholar
  23. Zhao Q, Wang C, Guo J, Wang B, Liu J (2018) Precise orbit and clock determination for BeiDou-3 experimental satellites with yaw attitude analysis. GPS Solut.  https://doi.org/10.1007/s10291-017-0673-y Google Scholar
  24. Zhou S, Hu X, Wu B, Liu L, Qu W, Guo R, He F, Cao Y, Wu X, Zhu L et al (2011) Orbit determination and time synchronization for a GEO/IGSO satellite navigation constellation with regional tracking network. Sci China Phys Mech Astron 54:1089–1097CrossRefGoogle Scholar
  25. Zhou S, Cao Y, Zhou J, Hu X, Tang C, Liu L, Guo R, He F, Chen J, Wu B (2012) Positioning accuracy assessment for the 4GEO/5IGSO/2MEO constellation of COMPASS. Sci China Phys Mech Astron 55:2290–2299CrossRefGoogle Scholar
  26. Zhou S, Hu X, Liu L, Guo R, Zhu L, Chang Z, Tang C, Gong X, Li R, Yu Y (2016) Applications of two-way satellite time and frequency transfer in the BeiDou navigation satellite system. Sci China Phys Mech Astron 59:109511CrossRefGoogle Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Ziqian Wu
    • 1
    • 2
  • Shanshi Zhou
    • 1
    • 3
  • Xiaogong Hu
    • 1
    • 3
  • Li Liu
    • 4
  • Tao Shuai
    • 1
  • Yonghui Xie
    • 1
  • Chengpan Tang
    • 1
  • Junyang Pan
    • 1
    • 2
  • Lingfeng Zhu
    • 4
  • Zhiqiao Chang
    • 4
  1. 1.Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghaiChina
  2. 2.University of Chinese Academy of SciencesBeijingChina
  3. 3.Shanghai Key Laboratory for Space Positioning and NavigationShanghaiChina
  4. 4.Beijing Satellite Navigation CenterBeijingChina

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