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Chinese Journal of Lasers, Volume. 48, Issue 13, 1310001(2021)

Moving Target Distance and Velocity Measurement System Based on Photo-Counting Lidar

Fanghua Liu1,2, Yan He1、*, Yuan Luo1, Wenwu Jia4, Lijun Cao5, Linlin Li5, Kaipeng Li1,2, Yongqiang Chen1,2, Shouchuan Guo1,3, and Weibiao Chen1
Author Affiliations
  • 1Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 2Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
  • 3School of Physical and Technology, ShanghaiTech University, Shanghai 201210, China
  • 4Weapons Testing Center, Huayin, Shaanxi 714200, China
  • 5Aerospace Dongfanghong Satellite Company Limited, Beijing 100094, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (11)
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    References (10)
    Cited By (5)
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    Figures & Tables(11)
    Structure of high speed ranging system

    Fig. 1. Structure of high speed ranging system

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    Overall view of laser ranging lidar

    Fig. 2. Overall view of laser ranging lidar

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    Relationship between signal to noise ratio and detection distance

    Fig. 3. Relationship between signal to noise ratio and detection distance

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    Relationship between ranging accuracy and detection distance

    Fig. 4. Relationship between ranging accuracy and detection distance

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    Time-dependent single-photon counting curve and its local magnification

    Fig. 5. Time-dependent single-photon counting curve and its local magnification

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    Experimental results of laser ranging

    Fig. 6. Experimental results of laser ranging

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    Test selected five target locations

    Fig. 7. Test selected five target locations

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    Results of mobile UAV ranging experiment. (a) Original result; (b) Gaussian fitting result; (c) polynomial fitting processing result; (d) velocity

    Fig. 8. Results of mobile UAV ranging experiment. (a) Original result; (b) Gaussian fitting result; (c) polynomial fitting processing result; (d) velocity

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    UAVs ranging experiment UKF algorithm processing results. (a) Ranging values between UKF algorithm and polynomial fitting; (b) ranging deviation between UKF algorithm and polynomial fitting method; (c) velocity measurement values between UKF algorithm and polynomial fitting; (d) velocity measurement deviation between UKF algorithm and polynomial fitting method

    Fig. 9. UAVs ranging experiment UKF algorithm processing results. (a) Ranging values between UKF algorithm and polynomial fitting; (b) ranging deviation between UKF algorithm and polynomial fitting method; (c) velocity measurement values between UKF algorithm and polynomial fitting; (d) velocity measurement deviation between UKF algorithm and polynomial fitting method

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    • Table 1. Main technical parameters of system

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      Table 1. Main technical parameters of system

      SystemParameterValue
      TransmitterPulse repetition frequency /kHz25
      Wavelength /nm1545.3
      Pulse width /ns6
      Pulse energy /μJ80
      Divergence angle /mrad1
      ReceiverReceiver aperture /mm23
      Receiver field of view /mrad1.2
      Optical filter bandpass /nm1
      Optical throughout efficiency /%60
      Detector efficiency /%15
      LidarData updating rate /Hz100
      Weight /kg9.2
      Size /mm390×184×150

    • Table 2. Ranging results of target plate at different positions

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      Table 2. Ranging results of target plate at different positions

      PositionActual distance /mLaser ranging /mAccuracy /mSNR /dBPrecision (theory) /mPrecision (experiment) /m
      A2434.8582434.8620.00419.160.0200.043
      B3806.6063806.7670.1615.560.0670.119
      C4870.0924869.9820.1105.630.0670.085
      D4815.2154815.2560.0415.820.0640.096
      E4848.5424848.6020.0605.190.0720.093
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    Fanghua Liu, Yan He, Yuan Luo, Wenwu Jia, Lijun Cao, Linlin Li, Kaipeng Li, Yongqiang Chen, Shouchuan Guo, Weibiao Chen. Moving Target Distance and Velocity Measurement System Based on Photo-Counting Lidar[J]. Chinese Journal of Lasers, 2021, 48(13): 1310001

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    Paper Information

    Category: remote sensing and sensor

    Received: Dec. 2, 2020

    Accepted: Jan. 20, 2021

    Published Online: Jul. 5, 2021

    The Author Email: Yan He (heyan@siom.ac.cn)

    DOI:10.3788/CJL202148.1310001

    Topics

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