Xue-yuan WANG, Jian-feng HE, Lin LIU, Feng-jun NIE. Research on Adaptive Peak Detection of X-Ray Fluorescence Spectrum With Wavelet Transform and Derivative Method[J]. Spectroscopy and Spectral Analysis, 2020, 40(12): 3930
- Spectroscopy and Spectral Analysis
- Vol. 40, Issue 12, 3930 (2020)
Fig. 1. Measured spectrum of standard sample 1
Fig. 2. Peak-finding results of first-order derivative method
(a): Peak-finding results without smoothing; (b): Peak-finding results after mean smoothing-window size is 5
(a): Peak-finding results without smoothing; (b): Peak-finding results after mean smoothing-window size is 5
Fig. 3. Even-order Gauss wavelet functions
Fig. 4. Wavelet transform coefficients when the decomposition scale changes from 1 to 8
Fig. 5. Peak-finding results by continuous wavelet transform method
Fig. 6. Peak-finding by adaptive method based on derivative and wavelet transform
(a): Peak-finding results for scale 1; (b): Union of peak-finding results
(a): Peak-finding results for scale 1; (b): Union of peak-finding results
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Table 1. The content of elements in standard sample 1
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Table 2. Peak-finding results for wavelet transform coefficient spectrum with different decomposition scale
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Table 3. Results of peak-finding
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