Infrared and Laser Engineering, Volume. 54, Issue 6, 20240603(2025)

Research on prediction method for laser pointing deviation in ranging system

Junfeng CUI1,2, Zhulian LI1,3,4, Dongsheng ZHAI1,3,4, Haitao ZHANG1,3,4, Hu TAO1,2, and Yuqiang LI1,3,4
Author Affiliations
  • 1Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
  • 3Key Laboratory of Space Object and Debris Observation, Chinese Academy of Sciences, Nanjing 210023, China
  • 4Yunnan Key Laboratory of the Solar physics and Space Science, Kunming 650216, China
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    Figures & Tables(8)
    Laser ranging emission optical path
    Analytical optical path
    Light spot image processing flowchart
    Light spot image fitting result
    (a) Distribution of the spot position on the camera at different azimuth angles when the elevation angle is 70°; (b) Center of the spot position distribution on the camera at elevation angles from 20° to 80°
    (a1), (b1) Measurement of laser pointing deviation; (a2), (b2) Model of pointing deviation
    • Table 1. Acquisition parameter

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      Table 1. Acquisition parameter

      ParameterValue
      Azimuth range/(°)0-360
      Elevation range/(°)20-80
      Azimuth interval/(°)3
      Elevation interval/(°)2
      Exposure time/ms200
      Number of sampling points3720
      Frames per sampling point3
    • Table 2. Fitting results

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      Table 2. Fitting results

      ParameterX-axisY-axisXYcombined
      MAE/(")1.561.192.19
      RMSE/(")1.981.442.45
      MaxAE/(")5.564.745.80
      R20.980.990.99
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    Junfeng CUI, Zhulian LI, Dongsheng ZHAI, Haitao ZHANG, Hu TAO, Yuqiang LI. Research on prediction method for laser pointing deviation in ranging system[J]. Infrared and Laser Engineering, 2025, 54(6): 20240603

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    Paper Information

    Category: 光电测量

    Received: Jan. 12, 2025

    Accepted: --

    Published Online: Jul. 1, 2025

    The Author Email:

    DOI:10.3788/IRLA20240603

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