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Chinese Journal of Lasers, Volume. 50, Issue 18, 1804004(2023)

Experimental Study of Forward Laser Time Transfer Based on Satellite Retroreflector

Renfang Geng1,2, Zhibo Wu1,3、*, Yong Huang1, Haisheng Lin4, Rongzong Yu5, Kai Tang1, Haifeng Zhang1,3, and Zhongping Zhang1,3
Author Affiliations
  • 1Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
  • 3Key Laboratory of Space Object and Debris Observation, Chinese Academy of Sciences, Nanjing 210008, Jiangsu, China
  • 4School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China
  • 5School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (14)
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    References (22)
    Cited By (2)
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    Figures & Tables(14)
    Layout of curved mirrors on Ajisai satellite[12]

    Fig. 1. Layout of curved mirrors on Ajisai satellite[12]

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    Schematic of two-way forward laser time transfer (FLTT)

    Fig. 2. Schematic of two-way forward laser time transfer (FLTT)

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    Schematic of one-way FLTT

    Fig. 3. Schematic of one-way FLTT

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    Sequence diagram of two-way FLTT

    Fig. 4. Sequence diagram of two-way FLTT

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    Sequence diagram of one-way FLTT

    Fig. 5. Sequence diagram of one-way FLTT

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    Block diagram of FLTT system on Shanghai Astronomical Observatory(SHAO)

    Fig. 6. Block diagram of FLTT system on Shanghai Astronomical Observatory(SHAO)

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    Schematic of real clock difference monitoring

    Fig. 7. Schematic of real clock difference monitoring

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    Results of two-way FLTT with a common clock (BDS45: RMS of clock difference between 39800 and 40700 days seconds is 65 ps; BDS22: RMS of clock difference between 41000 and 41200 days seconds is 65 ps)

    Fig. 8. Results of two-way FLTT with a common clock (BDS45: RMS of clock difference between 39800 and 40700 days seconds is 65 ps; BDS22: RMS of clock difference between 41000 and 41200 days seconds is 65 ps)

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    Results of one-way FLTT with a common clock (BDS45: RMS of clock difference between 39800 and 40700 days seconds is 95 ps; BDS22: RMS of clock difference between 41000 and 41200 days seconds is 92 ps)

    Fig. 9. Results of one-way FLTT with a common clock (BDS45: RMS of clock difference between 39800 and 40700 days seconds is 95 ps; BDS22: RMS of clock difference between 41000 and 41200 days seconds is 92 ps)

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    Results of two-way FLTT with non-common clocks (BDS21: RMS of clock difference is 70 ps; Galileo206: RMS of clock difference is 62 ps)

    Fig. 10. Results of two-way FLTT with non-common clocks (BDS21: RMS of clock difference is 70 ps; Galileo206: RMS of clock difference is 62 ps)

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    Results of one-way FLTT with non-common clocks (BDS21: RMS of clock difference is 96 ps; Galileo206: RMS of clock difference is 90 ps)

    Fig. 11. Results of one-way FLTT with non-common clocks (BDS21: RMS of clock difference is 96 ps; Galileo206: RMS of clock difference is 90 ps)

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    Result of real clock difference monitoring

    Fig. 12. Result of real clock difference monitoring

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    1pps measurement results of experimental clock

    Fig. 13. 1pps measurement results of experimental clock

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    • Table 1. Interpolation model verification results

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      Table 1. Interpolation model verification results

      SatelliteAccuracy /ps
      BDS4542
      BDS2240
      Lageos-130
      GRACE-FO-115
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    Renfang Geng, Zhibo Wu, Yong Huang, Haisheng Lin, Rongzong Yu, Kai Tang, Haifeng Zhang, Zhongping Zhang. Experimental Study of Forward Laser Time Transfer Based on Satellite Retroreflector[J]. Chinese Journal of Lasers, 2023, 50(18): 1804004

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    Paper Information

    Category: Measurement and metrology

    Received: Jun. 13, 2022

    Accepted: Nov. 23, 2022

    Published Online: Aug. 28, 2023

    The Author Email: Zhibo Wu (wzb@shao.ac.cn)

    DOI:10.3788/CJL220964

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology