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Chinese Journal of Lasers, Volume. 51, Issue 8, 0810003(2024)

Distributed Optical Fiber Multi‐Dimensional Localization with Large Detection Aperture Based on Phase Correction

Junqi Yang1,2, Zhaoyong Wang1,2,3,4、*, Yifan Liu1,2, Shuai Luwei1,2, Kan Gao1, Qing Ye1,2,3、**, and Haiwen Cai2
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
  • 3Shanghai Zhongke Shenguang Optoelecronic Industry Co., Ltd., Shanghai 201815, China
  • 4Shanghai Sheshan National Geophysical Observatory, Shanghai 201602, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (10)
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    References (20)
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    Figures & Tables(10)
    Schematic diagram of DAS target source response in near field

    Fig. 1. Schematic diagram of DAS target source response in near field

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    Confirmation experiment. (a) Experiment setup of target source localization test; (b) structure of optical cable

    Fig. 2. Confirmation experiment. (a) Experiment setup of target source localization test; (b) structure of optical cable

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    Delay among different sensing channels

    Fig. 3. Delay among different sensing channels

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    TDOA pre-estimation results for different numbers of sensing channels

    Fig. 4. TDOA pre-estimation results for different numbers of sensing channels

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    Phase shift of sensing array

    Fig. 5. Phase shift of sensing array

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    Spatial spectrum estimation. (a) Before phase correction; (b) after phase correction

    Fig. 6. Spatial spectrum estimation. (a) Before phase correction; (b) after phase correction

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    Change of Rrmse with MUSIC iterations

    Fig. 7. Change of Rrmse with MUSIC iterations

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    Localization results of target source. (a) Spatial spectrum estimation; (b) locations in rectangular coordinate system

    Fig. 8. Localization results of target source. (a) Spatial spectrum estimation; (b) locations in rectangular coordinate system

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    • Table 1. TDOA pre-estimation results of three different sensing channels

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      Table 1. TDOA pre-estimation results of three different sensing channels

      Sensing channels groupDistance r /mAngle θ /（°）
      ［1，2，3］9.649065.8268
      ［1，3，5］16.908361.4332
      ［1，4，7］19.381764.6476
      ［1，5，9］40.021553.4207
      ［1，7，9］37.799654.2196
      ［1，8，9］54.633749.0911
      Average29.732358.1065

    • Table 2. Comparison among proposed method and existing methods

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      Table 2. Comparison among proposed method and existing methods

      MethodRef.Layout requirementWARRelative error /%
      TDOA optimization［8］—5∶18.30
      Sparse beamforming （ASP）［10］Large array aperture （8.63 km）7∶10.83
      MUSIC （ASP）［12］Wound fiber100∶134.48
      MUSIC （ASP）［11］—25∶13.14
      Proposed——8∶14.09
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    Junqi Yang, Zhaoyong Wang, Yifan Liu, Shuai Luwei, Kan Gao, Qing Ye, Haiwen Cai. Distributed Optical Fiber Multi‐Dimensional Localization with Large Detection Aperture Based on Phase Correction[J]. Chinese Journal of Lasers, 2024, 51(8): 0810003

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    Paper Information

    Category: remote sensing and sensor

    Received: Jul. 25, 2023

    Accepted: Sep. 25, 2023

    Published Online: Mar. 29, 2024

    The Author Email: Wang Zhaoyong (wzhy0101@siom.ac.cn), Ye Qing (yeqing@siom.ac.cn)

    DOI:10.3788/CJL231054

    CSTR:32183.14.CJL231054

    Topics

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