Laser & Optoelectronics Progress, Volume. 58, Issue 3, 3280021(2021)

Dynamic Threshold Calculation for Millimeter Wave Radar Based on Environmental Noise

Sun Binbin1,2、*, Shen Tao1, Jia Lei2, Li Hongpeng2, Cui Xiaorong1, and Chen Yukui3
Author Affiliations
  • 1School of Nuclear Engineering, University of Rocket Science and Engineering, Xi''an , Shaanxi 710025, China
  • 225 Institute, Beijing Institute of Remote Sensing Equipment, Beijing 100854, China
  • 3School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu , Sichuan 611731, China
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    Figures & Tables(19)
    Sawtooth wave working principle of FMCW radar system
    R⁃D transform
    Block diagram of FMCW millimeter waveradar system
    CA⁃CFAR detection principle
    Flow chart of the proposed method
    Distribution characteristics of radar noise and target power
    Peak point statistics
    Distance measurement
    Angle measurement
    Experiment 1
    Experiment 2
    Experiment 3
    Experiment 4
    Experiment 5
    Experiment 6
    • Table 1. Measurement results of static test distance

      View table

      Table 1. Measurement results of static test distance

      MethodActual distance /m

      Detection average

      distance /m

      Distance

      error /%

      CA⁃CFAR3837.61951.00
      Proposed method3838.14730.39
    • Table 2. Measurement results of static test angle

      View table

      Table 2. Measurement results of static test angle

      Method

      Measuring range

      on the left /(°)

      Measuring range

      on the right /(°)

      CA⁃CFAR-9.944‒-6.4936.685‒10.420
      Proposed method-9.524‒-4.0983.979‒9.827
    • Table 3. Measurement results of dynamic test distance

      View table

      Table 3. Measurement results of dynamic test distance

      Experiment No.123456
      CA⁃CFAR24.8735.66146.8132.7899.3132.9
      Proposed method31.2442.49156.5158.20110.7158.2
      Distance error6.376.839.725.4211.425.3
    • Table 4. Measurement results of dynamic test speed

      View table

      Table 4. Measurement results of dynamic test speed

      Experiment No.Mean valueVariance value
      CA⁃CFARProposed methodCA⁃CFARProposed method
      1-1.6721-1.70140.02110.0283
      21.70011.72680.02360.0305
      3-7.5541-7.62440.26650.2531
      47.67627.73990.04020.0387
      5-15.5537-15.52691.55271.5352
      614.705614.73941.58671.5268
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    Sun Binbin, Shen Tao, Jia Lei, Li Hongpeng, Cui Xiaorong, Chen Yukui. Dynamic Threshold Calculation for Millimeter Wave Radar Based on Environmental Noise[J]. Laser & Optoelectronics Progress, 2021, 58(3): 3280021

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    Paper Information

    Category: Remote Sensing and Sensors

    Received: May. 6, 2020

    Accepted: --

    Published Online: Mar. 12, 2021

    The Author Email: Binbin Sun (1491967912@qq.com)

    DOI:10.3788/LOP202158.0328002

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