Study On Optical Communications, Volume. 50, Issue 3, 23003801(2024)

Satellite Search and Rescue Localization Technology based on Windowed CAF Estimation

Chao ZHENG*, Dexin QU, and Gengxin ZHANG
Author Affiliations
  • College of Telecommunications & Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
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    Figures & Tables(6)
    Model of dual-satellite search and rescue system
    Signal processing schematic diagram of LUT
    Schematic diagram of CAF without and with window
    Comparison results of time-frequency difference before and after windowing under different SNR
    Location precision(m)vs TDOA/FDOA error
    • Table 1. Estimated results and processing time of each method

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      Table 1. Estimated results and processing time of each method

      CAF算法RMSE(TDOA/μs)RMSE(FDOA/Hz)处理时间/s
      直接计算4.826 51.675 5208.31
      FFT方法4.718 41.657 82.48
      WCAF0.922 61.255 4202.52
      WCAF(FFT)0.923 71.255 42.39
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    Chao ZHENG, Dexin QU, Gengxin ZHANG. Satellite Search and Rescue Localization Technology based on Windowed CAF Estimation[J]. Study On Optical Communications, 2024, 50(3): 23003801

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    Paper Information

    Category: Research Articles

    Received: Apr. 18, 2023

    Accepted: --

    Published Online: Jul. 19, 2024

    The Author Email: Chao ZHENG (2352205654@qq.com)

    DOI:10.13756/j.gtxyj.2024.230038

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