Infrared and Laser Engineering, Volume. 52, Issue 11, 20230104(2023)

Design and verification of optical system on very high-precision and miniature star sensor

Weifeng Du... Yanqing Wang, Xunjiang Zheng, Yongkang Wu and Tingan Xie |Show fewer author(s)
Author Affiliations
  • Shanghai Institute of Spaceflight Control Technology, Shanghai 201109, China
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    Figures & Tables(22)
    Radius of Gaussian beam and error value of RMS
    The extraction precision of pixel in different positions of 7 pixel×7 pixel
    Power density of 6.5 magnitude star under different colour temperatures
    SNR as integration time changes under different apertures
    Number and probability of attitude determining stars in field of view
    Light path diagram
    Spot diagrams
    Distortion of centroid
    Geometric encircled energy
    Lateral color
    RMS of spot diameter as field of view changes
    Centroid shift of diffused light spot as field of view changes
    Accuracy test equipment
    Imaging spot
    Distribution of calibration residual error
    Scene of out-field stargazing
    Results of measurement accuracy
    Gray-level distribution of 6.51 magnitude star
    Variation curve of transmittance before and after irradiation
    Gray-level distribution of 6.01 magnitude star
    • Table 1. HipJ2000 star catalogue

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      Table 1. HipJ2000 star catalogue

      SpectrumColor temperature/K Peak wavelength/nm Stars (number)
      OGreater than 30000Lower than 96.650
      B10000-3000096.9-289.81262
      A7500-10000289.8-386.41729
      F6000-7500386.4-4831190
      G5000-6000483-579.61131
      K3500-5000579.6-8282469
      M2000-3500828-1449517
    • Table 2. Requirement of optical system design parameters

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      Table 2. Requirement of optical system design parameters

      TitleTechnical requirement
      Aperture/mm22
      Focal length/mm35.53
      Half field of view/(°)9
      Geometric encircled energy under 0.9 field of view and 3 pixel×3 pixel ≥90%
      Lateral colour/μm≤±2
      Centroid distortion/μm≤±2
      Diameter variation of diffused light spot under −40 ℃ to 60 ℃/μm ≤±0.5
      Working wavelength/nm500-850
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    Weifeng Du, Yanqing Wang, Xunjiang Zheng, Yongkang Wu, Tingan Xie. Design and verification of optical system on very high-precision and miniature star sensor[J]. Infrared and Laser Engineering, 2023, 52(11): 20230104

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    Paper Information

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    Received: Mar. 1, 2023

    Accepted: --

    Published Online: Jan. 8, 2024

    The Author Email:

    DOI:10.3788/IRLA20230104

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