Acta Optica Sinica, Volume. 40, Issue 2, 0228002(2020)

Laser Ranging for Space Debris Using Double Telescopes with Kilometer-Level Distance

Mingliang Long1, Haifeng Zhang1,2、*, Huarong Deng1, Kai Tang1, Zhongping Zhang1,2, and Ali Zhang3
Author Affiliations
  • 1Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China
  • 2Key Laboratory of Space Object and Debris Observation, Chinese Academy of Sciences, Nanjing, Jiangsu 21008, China
  • 3Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China
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    Figures & Tables(10)
    Structural diagram of Shanghai Observatory’s satellite laser ranging system
    Diagram of delay measurement/ranging structure in SLR system
    Measurement of transmission delay in SLR system
    Mode measurement of main pulse detector, detector, and photocell in channels A and B of timer
    Range detection in SLR
    Locations of laser transmitting telescope and laser receiving telescope
    Calculation of range gate control value for remote multi-receiving telescopes
    Signals from transmitting telescope and receiving telescope for space debris (ID: 11672). (a) Transmitting telescope; (b) receiving telescope
    • Table 1. Main performance parameters of telescope systems located in Sheshan and Science and Technology Park

      View table

      Table 1. Main performance parameters of telescope systems located in Sheshan and Science and Technology Park

      TypeTelescope in SheshanTelescope at Science and Technology Park
      Optical systemR-CR-C
      Mounted typeAZ-ELAZ-EL
      Focus length /m5.25.2
      Receiving optical efficiency60%@532 nm60%@532 nm
      Detector20%@532 nm40%@532 nm
      Detection field of view /(″)90135
      Tracking root-mean-square /(″)11
      Event timerA033A033
      Transmitting optical efficiency70%@532 nm
      Laser power60 W@200 Hz
      Transmitting telescope diameter /cm21
      Angle of laser divergence /(″)10-12
    • Table 2. Measurement results for space debris with two telescopes

      View table

      Table 2. Measurement results for space debris with two telescopes

      IDName of space debrisRCS /m2Measured distance /kmRanging precision /cm
      Main telescopeFellowing telescope
      21610ArianeR_B16.841390129.2149.0
      16182SL-16R_B12.051030141.0141.7
      11672SL-14R_B4.21116056.264.7
      16720SL-14R_B3.58117074.962.2
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    Mingliang Long, Haifeng Zhang, Huarong Deng, Kai Tang, Zhongping Zhang, Ali Zhang. Laser Ranging for Space Debris Using Double Telescopes with Kilometer-Level Distance[J]. Acta Optica Sinica, 2020, 40(2): 0228002

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    Paper Information

    Category: Remote Sensing and Sensors

    Received: Jul. 22, 2019

    Accepted: Sep. 19, 2019

    Published Online: Jan. 2, 2020

    The Author Email: Zhang Haifeng (hfzhang@shao.ac.cn)

    DOI:10.3788/AOS202040.0228002

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