Gangfu Rao, Lin Huang, Xiuwen He, Jinlong Lin, Hui Yang, Muhua Liu, Tianbing Chen, Jinyin Chen, Mingyin Yao. Comparison of Tea Variety Discriminating Models Based on Laser Induced Breakdown Spectroscopy[J]. Laser & Optoelectronics Progress, 2018, 55(2): 023002
- Laser & Optoelectronics Progress
- Vol. 55, Issue 2, 023002 (2018)
Fig. 1. Schematic of LIBS setup
Fig. 2. LIBS spectra of Tieguanyin tea sample. (a) Original spectrum; (b) spectrum after nine-point smoothing pretreatment
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Table 1. Classification accuracy of model built by nine-point smoothing combined with principal component analysis
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Table 2. Classification accuracy of model built by nine-point smoothing and first derivative combined with principal component analysis
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