Acta Photonica Sinica, Volume. 53, Issue 8, 0801004(2024)

Extended Resampling of Subharmonic Atmospheric Turbulence Simulation Phase Screen Research

Wenyong LU... Yan SHI*, Jianyong CHEN, Chunlian ZHAN and Shangzhong JIN |Show fewer author(s)
Author Affiliations
  • College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, China
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    Figures & Tables(24)
    The relationship between low frequency sampling points and high frequency sampling points
    Atmospheric turbulence simulation
    Comparison of phase structure function calculated by different series and theoretical value
    Relative error curves under different series
    Real shot image of telescope optical system
    Real shot of target scenery at a distance of 1.95 km
    Real time image MTF at a distance of 1.95 km
    Comparison of MTFactual and MTFoptics in an image formed at 1.95 km
    Atmospheric Turbulence Simulator simulation optical path diagram
    Diffraction MTF plot
    Huygens point spread function diagram
    Atmospheric Turbulence Simulator
    Schematic diagram of the Atmospheric Turbulence Simulator
    The image of the simulated system and its MTF curve when there is no turbulence
    Grayscale view of the atmospheric turbulence phase screen loaded onto a liquid crystal spatial light modulator
    The image of the simulated system and its MTF curves when r0'=0.467 9 mm
    Comparison chart of the MTFlab and MTFturb
    The absolute error of the MTFlab and MTFturb
    • Table 1. Comparison of computational complexity of various methods

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      Table 1. Comparison of computational complexity of various methods

      MethodFFT-SHZernikeFFT-RAE-SH
      NumberO(MN(log2 MN+8Np))i2×O(MN+i2)O(MN(log2 MN+12Np))
    • Table 2. The main parameters of the telescope optical system

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      Table 2. The main parameters of the telescope optical system

      ParameterNumber
      Caliber203.2 mm
      Focal length2 000 mm
      F/#10
      Half field of view angle4.148 0'
      Rear intercept133.35 mm
      Magnification rate51×
    • Table 3. Initial structural parameters of the atmospheric turbulence simulator

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      Table 3. Initial structural parameters of the atmospheric turbulence simulator

      ParameterNumber
      Aperture diaphragm1.5 mm
      Half field of view angle4.611 2°
      Turbulence path length110.696 mm
      Size of spectroscopic prism22.60 mm
      F/#10
    • Table 4. Lens parameters used in the atmospheric turbulence simulator

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      Table 4. Lens parameters used in the atmospheric turbulence simulator

      ModelRMaterialDiameter
      GL13-258.18 mmH-K9L50 mm
      GL11129.24 mmH-K9L50 mm
      GL11129.24 mmH-K9L50 mm
      GL11129.24 mmH-K9L50 mm
      GL13-258.18 mmH-K9L50 mm
      47-910-25.84 mmN-BK720 mm
      47-88520.10 mmN-BAF1020 mm
      47-88936.18 mmN-BK720 mm
      47-88725.84 mmN-BK720 mm
      47-88725.84 mmN-BK720 mm
    • Table 5. Board-level camera parameter table

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      Table 5. Board-level camera parameter table

      ParameterNumber
      ModelVEN-830-22U3M/C
      Resolution ratio3 840(H)×2 160(V)
      Frame rate22 fps
      Sensor Size1/1.8"
      Pixel size2.0 μm×2.0 μm
    • Table 6. The main parameters of liquid crystal spatial light modulator

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      Table 6. The main parameters of liquid crystal spatial light modulator

      ParameterNumber
      Panel size15.42 mm×9.66 mm
      Resolution ratio1 920×1 200 pixel
      Pixel size7.8 μm/8.0 μm
      Gray scale10 bit (1024)
      Working wavelength400~700 nm
      Panel reflectivityTyp.>90%
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    Wenyong LU, Yan SHI, Jianyong CHEN, Chunlian ZHAN, Shangzhong JIN. Extended Resampling of Subharmonic Atmospheric Turbulence Simulation Phase Screen Research[J]. Acta Photonica Sinica, 2024, 53(8): 0801004

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    Paper Information

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    Received: Dec. 14, 2023

    Accepted: Mar. 21, 2024

    Published Online: Oct. 15, 2024

    The Author Email: SHI Yan (shiyan@cjlu.edu.cn)

    DOI:10.3788/gzxb20245308.0801004

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