Infrared and Laser Engineering, Volume. 54, Issue 2, 20240422(2025)

Noise reduction method for phase-sensitive optical time domain reflector system based on empirical mode decomposition of complementary ensemble

Xinbo YUE1... Xu GAO1, Yang GAO2, Haitao WANG3 and Xiue LU4 |Show fewer author(s)
Author Affiliations
  • 1College of Optoelectronic Engineering, Changchun University of Science and Technology, Changchun 130022, China
  • 2Petrochina Southwest oil and gas Field Company, Chengdu 610000, China
  • 3Changchun Automobile Testing Center Limited Liability Company, Changchun 130022, China
  • 4Changchun CoherenT Optical Electro-Mechanical Technology Co., LTD, Changchun 130022, China
  • show less
    Figures & Tables(21)
    Structural diagram of the Φ-OTDR system
    Flow chart of the I/Q orthogonal demodulation algorithm
    Flow chart of the CEEMD algorithm
    Flow chart of the calculated multiscale permutation entropy
    Flow chart of the MVO algorithm
    Flowchart of the MVO-CEEMD algorithm for improved wavelet thresholds
    Simulated positioning experiment diagram, superimposed with white noise with a standard deviation of 0.2. (a) Vibration positioning curve; (b) Vibration positioning curve after noise removal
    The experimental platform
    (a) Acquisition electrical signal; (b) Amplitude curve; (c) Amplitude curve near the vibration position; (d) Vibration positioning curve
    Number of optimized iterations of the MVO algorithm. (a) Iterations 0-500 algorithm optimization diagram; (b) 0-50 iterations local magnification diagram
    CEEMD decomposes the IMF component signals
    Location curve of the 600 Hz vibration signal after denoising
    Denoising result of positioning when the vibration frequency is 10 Hz. (a) EMD-PCC; (b)VMD-NWT; (c) CEEMDAN; (d) Proposed algorithm
    Denoising result of positioning when the vibration frequency is 200 Hz. (a) EMD-PCC; (b)VMD-NWT; (c) CEEMDAN; (d) Proposed algorithm
    Denoising result of positioning when the vibration frequency is 1.2 kHz. (a) EMD-PCC; (b) VMD-NWT; (c) CEEMDAN; (d) Proposed algorithm
    Location map of the denoised vibration signal with a vibration frequency of 200 Hz. (a) EMD-PCC; (b) VMD-NWT; (c) CEEMDAN; (d) Proposed algorithm
    Phase frequency domain of vibration signal after denoising with vibration frequency of 200 Hz. (a) EMD-PCC; (b) VMD-NWT; (c) CEEMDAN; (d) Proposed algorithm
    Phase time domain of vibration signal after denoising with vibration frequency of 200 Hz. (a) EMD-PCC; (b) VMD-NWT; (c) CEEMDAN; (d) Proposed algorithm
    • Table 1. Main parameters of the experimental device

      View table
      View in Article

      Table 1. Main parameters of the experimental device

      System componentValue
      Laser wavelength/nm1550
      Laser linewidth/kHz3
      AOM frequency shift/MHz80
      EDFA wavelength/nm1550
      Vibration location (PZT)/km10.14
      Sampling frequency/GS·s−15
    • Table 2. MPE average of IMF component decomposed by CEEMD algorithm

      View table
      View in Article

      Table 2. MPE average of IMF component decomposed by CEEMD algorithm

      Component productMPEComponent productMPE
      IMF10.3596IMF90.1134
      IMF20.9848IMF100.1097
      IMF30.7476IMF110.1053
      IMF40.3636IMF120.1061
      IMF50.2286IMF130.1061
      IMF60.1667IMF140.1061
      IMF70.1384IMF150.0831
      IMF80.1227
    • Table 3. Comparison of SNR of localization information obtained by the denoising method and other methods

      View table
      View in Article

      Table 3. Comparison of SNR of localization information obtained by the denoising method and other methods

      Frequency/MethodSNR/dB
      Original signalEMD-PCCVMD-NWTCEEMDANMVO-CEEMD
      Low frequency10 Hz4.526.284.065.928.88
      20 Hz12.3410.1814.1616.3020.04
      30 Hz17.1416.0218.0624.5224.76
      40 Hz17.7818.1818.0421.0423.38
      Intermediate frequency200 Hz23.7420.5223.1229.6230.26
      500 Hz6.387.785.209.8210.02
      High frequency1200 Hz7.106.866.567.5211.90
      1400 Hz9.4610.529.4611.5416.74
    Tools

    Get Citation

    Copy Citation Text

    Xinbo YUE, Xu GAO, Yang GAO, Haitao WANG, Xiue LU. Noise reduction method for phase-sensitive optical time domain reflector system based on empirical mode decomposition of complementary ensemble[J]. Infrared and Laser Engineering, 2025, 54(2): 20240422

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: 光通信与光传感

    Received: Nov. 19, 2024

    Accepted: --

    Published Online: Mar. 14, 2025

    The Author Email:

    DOI:10.3788/IRLA20240422

    Topics