Spectroscopy and Spectral Analysis, Volume. 42, Issue 3, 776(2022)

Study on Compressed Sensing Method for Raman Spectroscopic Analysis of Isotope Hydrogen Gas

Yong-tian REN*... Yi HU, Jun CHEN and Jun CHEN*; |Show fewer author(s)
Author Affiliations
  • Science and Technology on Surface Physics and Chemistry Laboratory, China Academy of Engineering Physics, Mianyang 621908, China
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    Figures & Tables(10)
    (a) Simulated spectrum; (b) Simulated spectrum with noise; (c) Reconstructed spectrum by FTOMP; (d) Reconstructed spectrum by LoOMP; (e) Denoising spectrum with Wavelet soft threshold; (f) Denoising spectrum with Wavelet hard threshold; (g) SG filtered spectrum
    Compressed sensing method to reconstruct the signal(a): M/N-SNR curves; (b): M/N-RMSE curves; (c): K-SNR curves; (d): K-RMSE curves
    Raman spectrum of H2 and D2 mixed gas with 1 s collection time
    (a) Raman spectrum of H2 and D2 mixed gas with 1 s collection time; (b) Reconstructed spectrum by FTOMP; (c) Reconstructed spectrum by LoOMP; (d) Denoising spectrum by Wavelet soft threshold; (e) Denoising spectrum by Wavelet hard threshold; (f) SG filtered spectrum
    The difference in the D2 signal intensity by LoOMP and FTOMP(a): Intensity error of D2 signal vs M/N value; (b): Intensity error of D2 signal vs K value
    The difference in the D2 signal intensity by LoOMP and FTOMP(a): Intensity of D2 signal vs collection time; (b): Intensity error of D2 signal vs collection time
    • Table 1. Parameters of only simulated Raman signal

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      Table 1. Parameters of only simulated Raman signal

      NumberPeak positionAmplitudeFull width at half max
      1100810
      22501514
      36002016
      480058
    • Table 2. Parameters of reconstructed Raman signals by LoOMP

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      Table 2. Parameters of reconstructed Raman signals by LoOMP

      NumberPeak positionAmplitudeFull width at half max
      11008.639.74
      225015.0814.11
      360019.7015.93
      48005.698.65
    • Table 3. SNR and RMSE before and after processing the treatments of the simulated noisy Raman spectrum

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      Table 3. SNR and RMSE before and after processing the treatments of the simulated noisy Raman spectrum

      originalLoOMPWavelet soft thresholdWavelet hard thresholdSGFTOMP
      SNR4.287 418.374 315.417 414.898 110.666 610.274 8
      RMSE1.747 50.345 20.485 20.515 10.838 40.877 1
    • Table 4. The difference in the D2 signal intensity by the five methods

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      Table 4. The difference in the D2 signal intensity by the five methods

      LoOMPWavelet soft thresholdWavelet hard thresholdSGFTOMP
      Intensity error-0.098 10.371 60.105 60.088 30.524 9
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    Yong-tian REN, Yi HU, Jun CHEN, Jun CHEN. Study on Compressed Sensing Method for Raman Spectroscopic Analysis of Isotope Hydrogen Gas[J]. Spectroscopy and Spectral Analysis, 2022, 42(3): 776

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    Paper Information

    Category: Research Articles

    Received: Feb. 5, 2021

    Accepted: May. 8, 2021

    Published Online: Apr. 19, 2022

    The Author Email: Yong-tian REN (yongtianren@163.com)

    DOI:10.3964/j.issn.1000-0593(2022)03-0776-07

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