• Infrared and Laser Engineering
  • Vol. 50, Issue 10, 20200473 (2021)
Renfang Geng1,2, Zhibo Wu2,3, Kai Tang2, Yan Li2..., Wendong Meng2 and Zhongping Zhang2,3|Show fewer author(s)
Author Affiliations
  • 1School of Remote Sensing & Geomatics Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China
  • 2Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China
  • 3Key Laboratory of Space Object and Debris Observation, Chinese Academy of Sciences, Nanjing 210008, China
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    DOI: 10.3788/IRLA20200473 Cite this Article
    Renfang Geng, Zhibo Wu, Kai Tang, Yan Li, Wendong Meng, Zhongping Zhang. Precise control of laser emission epoch in laser time transfer with high repetition rate[J]. Infrared and Laser Engineering, 2021, 50(10): 20200473 Copy Citation Text show less
    Schematic diagram of satellite-ground LTT in China’s space mission
    Fig. 1. Schematic diagram of satellite-ground LTT in China’s space mission
    Principle diagram of satellite-ground LTT
    Fig. 2. Principle diagram of satellite-ground LTT
    Schematic diagram of precision control of laser emission epoch in LTT with high repetition rate
    Fig. 3. Schematic diagram of precision control of laser emission epoch in LTT with high repetition rate
    Block diagram of laser firing signal output in LTT with high repetition rate
    Fig. 4. Block diagram of laser firing signal output in LTT with high repetition rate
    Simulation experiment diagram of ground laser firing signal hardware implementation
    Fig. 5. Simulation experiment diagram of ground laser firing signal hardware implementation
    Verification accuracy of laser firing signal hardware control
    Fig. 6. Verification accuracy of laser firing signal hardware control
    PointsOnboard fixed gate epoch/sActual laser firing epoch/sTheoretical laser firing epoch/sDifference between theory and practice/s
    183287.04550013224183287.04093455428683287.0409346439260.000000089640
    283287.04600013220683287.04143456414783287.0414346548930.000000090746
    383287.04650013228883287.04193457425583287.0419346659910.000000091736
    483287.04700013226883287.04243458417483287.0424346769720.000000092798
    583287.04750013232183287.04293459416683287.0429346880410.000000093875
    100083287.53250013229383287.52794526018483287.5279453536350.000000093451
    100183287.53300013228783287.52844527327883287.5284453646020.000000091324
    100283287.53350013231183287.52894528231383287.5289453756120.000000093299
    100383287.53400013229183287.52944529618983287.5294453865790.000000090390
    100483287.53450013228683287.52994530525483287.5299453975460.000000092292
    Table 1. Verification results of laser firing signal hardware control
    Renfang Geng, Zhibo Wu, Kai Tang, Yan Li, Wendong Meng, Zhongping Zhang. Precise control of laser emission epoch in laser time transfer with high repetition rate[J]. Infrared and Laser Engineering, 2021, 50(10): 20200473
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