Chinese Journal of Lasers, Volume. 47, Issue 10, 1010001(2020)

Interference Suppression of Coherent Laser Micro Doppler Radar

Li Yuexin1,2, Sun Jianfeng1, Zhou Yu1, Lu Zhiyong1, Cai Xinyu1,2, and Cong Haisheng1,2
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
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    Figures & Tables(10)
    Structure of interference suppression system
    Relationship between instantaneous frequency of linear modulation lidar and time
    Performance of two positions of target at same rising edge in spectrum range
    Picture of object
    Radar system of interference suppression and laser output collimator
    Experimental results of case 1. (a) Speed of target position 1; (b) speed of target position 2; (c) micro vibration velocity of target 1 after compensation; (d) micro Doppler frequency characteristic of target position 1
    Experimental results of case 2. (a) Speed of target position 1; (b) speed of target position 2; (c) micro vibration velocity of target 1 after compensation; (d) micro Doppler frequency characteristic of target position 1
    Experimental results of case 3. (a) Speed of target position 1; (b) speed of target position 2; (c) micro vibration velocity of target 1 after compensation; (d) micro Doppler frequency characteristic of target position 1
    Spectrum analysis results before and after compensation in case 1. (a) Before compensation; (b) after compensation
    • Table 1. Error of interference suppression result in each experimental case

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      Table 1. Error of interference suppression result in each experimental case

      ExperimentalcasePeak to peakfrequencyFp-p /HzRandomerror σ /HzRelativeprecision /%
      15934178.13.00
      25952163.42.75
      35978240.74.03
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    Li Yuexin, Sun Jianfeng, Zhou Yu, Lu Zhiyong, Cai Xinyu, Cong Haisheng. Interference Suppression of Coherent Laser Micro Doppler Radar[J]. Chinese Journal of Lasers, 2020, 47(10): 1010001

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    Paper Information

    Category: remote sensing and sensor

    Received: Apr. 7, 2020

    Accepted: --

    Published Online: Oct. 9, 2020

    The Author Email:

    DOI:10.3788/CJL202047.1010001

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