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
- Spectroscopy and Spectral Analysis
- Vol. 42, Issue 3, 776 (2022)
Fig. 1. (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
Fig. 2. 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
(a):
Fig. 3. Raman spectrum of H2 and D2 mixed gas with 1 s collection time
Fig. 4. (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
Fig. 5. The difference in the D2 signal intensity by LoOMP and FTOMP
(a): Intensity error of D2 signalvs M/N value; (b): Intensity error of D2 signal vs K value
(a): Intensity error of D2 signal
Fig. 6. The difference in the D2 signal intensity by LoOMP and FTOMP
(a): Intensity of D2 signalvs collection time; (b): Intensity error of D2 signal vs collection time
(a): Intensity of D2 signal
|
Table 1. Parameters of only simulated Raman signal
|
Table 2. Parameters of reconstructed Raman signals by LoOMP
|
Table 3. SNR and RMSE before and after processing the treatments of the simulated noisy Raman spectrum
|
Table 4. The difference in the D2 signal intensity by the five methods
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20