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Infrared and Laser Engineering, Volume. 53, Issue 11, 20240322(2024)

Extraction method of atmospheric turbulence characteristic parameters for six aperture structure

Jiaxin YU1, Haifeng YAO2,3、*, Zhi LIU4, Weihao WANG1, Shaoqian TIAN1, Zhongyu CAO4, Keyan DONG4, Shiming GAO5,6, and Fan BAI7
Author Affiliations
  • 1School of Electronic Information Engineering, Changchun University of Science and Technology, Changchun 130022, China
  • 2School of Optoelectronics, Beijing Institute of Technology, Beijing 100081, China
  • 3Changsanjiao Research Institute, Beijing Institute of Technology, Jiaxing 314000, China
  • 4National and Local Joint Engineering Research Center for Space Optoelectronics Technology, Changchun University of Science and Technology, Changchun 130022, China
  • 5Centre for Optical and Electromagnetic Research, State Key Laboratory of Extreme Photonics and Instrumentation, Zhejiang University, Hangzhou 310058, China
  • 6Ningbo Innovation Center, Zhejiang University, Ningbo 315100, China
  • 7Beijing Institute of Spacecraft Engineering, Beijing 100094, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (11)
    Equations (7)
    References (20)
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    Figures & Tables(11)
    Schematic diagram of the six-aperture mask device. (a) 3D image; (b) Configuration diagram

    Fig. 1. Schematic diagram of the six-aperture mask device. (a) 3D image; (b) Configuration diagram

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    Algorithm process diagram. (a) Original image frame; (b) Image after preprocessing; (c) Image after K-means mean clustering; (d) Image with centroid calibration

    Fig. 2. Algorithm process diagram. (a) Original image frame; (b) Image after preprocessing; (c) Image after K-means mean clustering; (d) Image with centroid calibration

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    Spot sticking leads to incorrect center of mass identification

    Fig. 3. Spot sticking leads to incorrect center of mass identification

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    Flowchart of K-means clustering algorithm

    Fig. 4. Flowchart of K-means clustering algorithm

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    The algorithm identifies the error probability

    Fig. 5. The algorithm identifies the error probability

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    Schematic diagram of the experimental system

    Fig. 6. Schematic diagram of the experimental system

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    Field communication link and transceiver. (a) Geographic location of the transmitter; (b) Propagation link 865 m; (c) Geographic location of the receiver; (d) Transmitter, light source is 532 nm; (e) Receiver, detector is CMOS

    Fig. 7. Field communication link and transceiver. (a) Geographic location of the transmitter; (b) Propagation link 865 m; (c) Geographic location of the receiver; (d) Transmitter, light source is 532 nm; (e) Receiver, detector is CMOS

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    Measurement software design. (a) Software program flow chart ; (b) PC interface

    Fig. 8. Measurement software design. (a) Software program flow chart ; (b) PC interface

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    K-means clustering algorithm and threshold segmentation algorithm measurement comparison

    Fig. 9. K-means clustering algorithm and threshold segmentation algorithm measurement comparison

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    Daily variation trend of turbulence

    Fig. 10. Daily variation trend of turbulence

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    • Table 1. Experimental equipment parameters

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      Table 1. Experimental equipment parameters

      ParameterValue
      LaserWavelength/nm532
      CCDResolution1920 pixel×1920 pixel
      Pixel size5.86 μm×5.86 μm
      Maximum frame rate/frame·s−1168
      Optical antennasEffective caliber/mm80
      Focal length/mm600
      Focal ratio f7.5
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    Jiaxin YU, Haifeng YAO, Zhi LIU, Weihao WANG, Shaoqian TIAN, Zhongyu CAO, Keyan DONG, Shiming GAO, Fan BAI. Extraction method of atmospheric turbulence characteristic parameters for six aperture structure[J]. Infrared and Laser Engineering, 2024, 53(11): 20240322

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    Paper Information

    Category: 大气光学

    Received: Jul. 1, 2024

    Accepted: --

    Published Online: Dec. 13, 2024

    The Author Email:

    DOI:10.3788/IRLA20240322

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology