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Chinese Journal of Quantum Electronics, Volume. 41, Issue 5, 729(2024)

Research on Doppler compensation in linear optical sampling algorithm

SHI Xiping and LIU Weiyue
Author Affiliations
  • College of Information Science and Engineering, Ningbo University, Ningbo 315211, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (12)
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    References (13)
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    Figures & Tables(12)
    Time domain (a) and frequency domain (b) diagrams of interference signal when v = 0

    Fig. 1. Time domain (a) and frequency domain (b) diagrams of interference signal when v = 0

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    Time domain (a) and frequency domain (b) diagrams of interference signal when v = 30 m/s

    Fig. 2. Time domain (a) and frequency domain (b) diagrams of interference signal when v = 30 m/s

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    Time domain (a) and frequency domain (b) diagrams of interference signal when v = 2000 m/s

    Fig. 3. Time domain (a) and frequency domain (b) diagrams of interference signal when v = 2000 m/s

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    Time domain (a) and frequency domain (b) diagrams of interference signal when v = -2000 m/s

    Fig. 4. Time domain (a) and frequency domain (b) diagrams of interference signal when v = -2000 m/s

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    Doppler linear optical sampling algorithm flow

    Fig. 5. Doppler linear optical sampling algorithm flow

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    Velocity calculation error of different scheme under 38.78 fs delay

    Fig. 6. Velocity calculation error of different scheme under 38.78 fs delay

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    Time delay calculation error of different scheme under 38.78 fs delay

    Fig. 7. Time delay calculation error of different scheme under 38.78 fs delay

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    Error result of linear optical sampling algorithm without compensating Doppler effect

    Fig. 8. Error result of linear optical sampling algorithm without compensating Doppler effect

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    Error result of narrow-band cross ambiguity function algorithm

    Fig. 9. Error result of narrow-band cross ambiguity function algorithm

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    Error result of wide-band cross ambiguity function algorithm

    Fig. 10. Error result of wide-band cross ambiguity function algorithm

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    • Table 1. Doppler search results of different schemes at different speed

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      Table 1. Doppler search results of different schemes at different speed

      Relative velocity v/(m⋅s-1)

      Theoretical value

      v/(m⋅s-1), τ/fs

      Narrow-band crossambiguity function search results

      v/(m⋅s-1), τ/fs

      Narrow-band cross ambiguity function error

      v/(m⋅s-1), τ/fs

      Wide-band crossambiguity function search results

      v/(m⋅s-1), τ/fs

      Wide-band

      cross ambiguity function error

      v/(m⋅s-1), τ/fs

      3030.00, 38.7830.10, 38.780.10, 030.10, 38.780.10, 0
      30030.00, 38.78300.20, 38.780.20, 0300.20, 38.780.20, 0
      60030.00, 38.78600.20, 38.780.20, 0600.20, 38.780.20, 0
      90030.00, 38.78900.20, 38.780.20, 0900.20, 38.780.20, 0
      120030.00, 38.781206.00, 58.176.00, 19.391200.30, 38.780.30, 0
      150030.00, 38.781507.00, 58.177.00, 19.391500.30, 38.780.30, 0
      180030.00, 38.781809.10, 65.929.10, 27.141800.30, 38.780.30, 0

    • Table 2. Error result of different scheme at high speed

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      Table 2. Error result of different scheme at high speed

      Parameter

      Linear optical sampling algorithm

      without compensating Doppler effect

      		Narrow-band cross ambiguity function algorithmWide-band cross ambiguity function algorithm
      Average error /fs114.53-2.06-1.15
      Standard deviation /fs120.1939.423.58
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    Xiping SHI, Weiyue LIU. Research on Doppler compensation in linear optical sampling algorithm[J]. Chinese Journal of Quantum Electronics, 2024, 41(5): 729

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    Paper Information

    Category:

    Received: Oct. 11, 2022

    Accepted: --

    Published Online: Jan. 8, 2025

    The Author Email:

    DOI:10.3969/j.issn.1007-5461.2024.05.003

    Topics

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