Infrared and Laser Engineering, Volume. 53, Issue 4, 20240002(2024)

Experimental study on the jamming of high-repetition rate laser to rangefinder

Lan Zhang, Yong Wan, Quanxi Liu, Xing Long, Xiaochuan Zhang, Huanxin Wu, Xuebin Yi, Delin Lu, and Jing Gao
Author Affiliations
  • Southwest Institute of Technical Physics, Chengdu 610041, China
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    Figures & Tables(12)
    Principle block diagram of pulsed laser rangefinder
    Jamming principle diagram of high-repetition rate laser to rangefinder
    Layout diagram of test equipment
    (a) Scatter plot of ranging result without jamming; (b) Ranging result distribution pie diagram without jamming
    (a) Scatter plot of ranging result at pump power is 10.5 A When frequency is 150 kHz; (b) Scatter plot of ranging result at pump power is 11 A When frequency is 150 kHz; (c) Scatter plot of ranging result at pump power is 11.5 A When frequency is 150 kHz; (d) Scatter plot of ranging result at pump power is 12 A When frequency is 150 kHz; (e) Scatter plot of ranging result at pump power is 12.5 A When frequency is 150 kHz; (f) Scatter plot of ranging result at pump power is 13 A When frequency is 150 kHz
    Fitting diagram of ranging result distribution at f=150 kHz
    (a) Scatter plot of ranging result at pump power is 10.5 A, when frequency is 50 kHz; (b) Scatter plot of ranging result at pump power is 11 A, when frequency is 50 kHz; (c) Scatter plot of ranging result at pump power is 11.5 A, when frequency is 50 kHz; (d) Scatter plot of ranging result at pump power is 12 A, when frequency is 50 kHz
    (a) Scatter plot of ranging result at pump power is 10.5 A, when frequency is 30 kHz; (b) Scatter plot of ranging result at pump power is 11 A, when frequency is 30 kHz; (c) Scatter plot of ranging result at pump power is 11.5 A, when frequency is 30 kHz; (d) Scatter plot of ranging result at pump power is 12 A, when frequency is 30 kHz
    (a) Fitting diagram of ranging result distribution at f=50 kHz; (b) Fitting diagram of ranging result distribution at f=30 kHz
    • Table 1. Parameters of laser rangefinder

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      Table 1. Parameters of laser rangefinder

      ParameterValue
      Pr/W4×10−8
      ${\eta _\gamma }$0.7
      A/mmΦ40
      f1/Hz5
    • Table 2. Output power and effective jamming rate under different pump at f=150 kHz

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      Table 2. Output power and effective jamming rate under different pump at f=150 kHz

      Pump currents/AOutput power/WEffective interference rate
      10.50.07116%
      11.00.09245%
      11.50.368100%
      12.00.828100%
      12.51.380100%
      13.01.748100%
    • Table 3. Effective jamming rate of laser with different repetition rate at different distance

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      Table 3. Effective jamming rate of laser with different repetition rate at different distance

      Distance/kmf=30 kHzeffective jamming ratef=50 kHzeffective jamming ratef=150 kHzeffective jamming rate
      120%33%100%
      360%100%100%
      5100%100%100%
      7100%100%100%
      9100%100%100%
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    Lan Zhang, Yong Wan, Quanxi Liu, Xing Long, Xiaochuan Zhang, Huanxin Wu, Xuebin Yi, Delin Lu, Jing Gao. Experimental study on the jamming of high-repetition rate laser to rangefinder[J]. Infrared and Laser Engineering, 2024, 53(4): 20240002

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    Paper Information

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    Received: Jan. 1, 2024

    Accepted: --

    Published Online: Jun. 21, 2024

    The Author Email:

    DOI:10.3788/IRLA20240002

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