Optics and Precision Engineering, Volume. 29, Issue 12, 2745(2021)

On-orbit rendering observation technology of small celestial bodies

Xing-tan LIU*... Cheng-yu ZHANG, Yan-peng WU, Bao-cheng HUA and Fen-zhi WU |Show fewer author(s)
Author Affiliations
  • Beijing Institute of Control Engineering, China Academy of Space Technology, Beijing100190, China
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    Figures & Tables(12)
    Asteroid monocular image set simulation process
    Flow chart for generating BRDF files
    Render Toolbox configuration process
    Relationship between AMICA camera wavelength and spectral flow
    Rendered observation image st_2421019509_v
    Simulation result and AMICA real shot image
    Difference between real-value and simulated images
    Observation sequence simulation results
    Terrain projection registration results
    • Table 1. AMICA wavelength and spectral flow data used in simulation

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      Table 1. AMICA wavelength and spectral flow data used in simulation

      λ/nmf/λλ/nmf/λ
      5100.001 75600.020 8
      5200.017 25700.019 3
      5300.018 05800.018 5
      5400.019 395900.008 5
      5500.018 36000.000 4
    • Table 2. ST_2421019509_V imaging external parameters

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      Table 2. ST_2421019509_V imaging external parameters

      名 称数 值
      目标距离/km3.982 19
      经度/(°)-66.750 41
      纬度/(°)21.733 39
      太阳方位角/(°)65.863 33
      赤经/(°)208.376 38
      倾斜度/(°)13.095 07
      太阳经度/(°)-69.326 59
      太阳纬度/(°)1.291 66
      入射角度/(°)36.909 46
      出射角度/(°)15.045 72
      相角/(°)23.923 92
      宇宙飞船经度/(°)-79.944 47
      宇宙飞船纬度/(°)22.879 32
      目标中心距离/km4.118 154
      飞船与太阳距离/km150 833 424.8
    • Table 3. Index statistics of terrain matching gray error

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      Table 3. Index statistics of terrain matching gray error

      NameMeanMedianSDRMSE
      Gray scale24.889 115.769 215.132 40.178 5
      Height difference/m8.756 55.547 95.323 90.062 8
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    Xing-tan LIU, Cheng-yu ZHANG, Yan-peng WU, Bao-cheng HUA, Fen-zhi WU. On-orbit rendering observation technology of small celestial bodies[J]. Optics and Precision Engineering, 2021, 29(12): 2745

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    Paper Information

    Category: Modern Applied Optics

    Received: May. 6, 2021

    Accepted: --

    Published Online: Jan. 20, 2022

    The Author Email: LIU Xing-tan (xingtanliu@163.com)

    DOI:10.37188/OPE.20212912.2745

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