Ying CHEN, Zheng-ying LIU, Chun-yan XIAO, Xue-liang ZHAO, Kang LI, Li-li PANG, Yan-xin SHI, Shao-hua LI. Overlapping Peak Analysis of Soil Heavy Metal X-Ray Fluorescence Spectra Based on Sparrow Search Algorithm[J]. Spectroscopy and Spectral Analysis, 2021, 41(7): 2175
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 7, 2175 (2021)
Fig. 1. Diagram of overlapping peaks
Fig. 2. Spectral denoising and background subtraction before and after comparison
(a): S-G smooth denoising;(b): Linear background minus background
(a): S-G smooth denoising;(b): Linear background minus background
Fig. 3. SSA flow chart
Fig. 4. Fitness value change curve of SSA
Fig. 5. Diagram of overlapping peak decomposition results
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Table 1. The error rate of Pb predicted area after EM algorithm decomposition
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Table 2. The error rate of Pb predicted area optimized by SSA
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Table 3. Position error of each peak after EM algorithm decomposition
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Table 4. Position error of each peak after SSA optimization
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