Chunting Li, Youyou Zhang, Huazhou Chen, Jie Gu, Lina Mo, Xiaoyu Li. Near-Infrared Spectral Waveband Selection for Soil Potassium Content Based on Simulated Annealing[J]. Laser & Optoelectronics Progress, 2022, 59(13): 1330002
- Laser & Optoelectronics Progress
- Vol. 59, Issue 13, 1330002 (2022)
Fig. 1. NIR spectra of 135 soil samples. (a) Raw spectra; (b) spectra obtained after preprocessing
Fig. 2.
Fig. 3. Iterative optimization process of the SA-iPLS model. (a) N=60; (b) N=70; (c) N=80; (d) N=90; (e) N=100
Fig. 4. Optimal feature waveband selected by SA-iPLS model (N=90)
Fig. 5. Prediction results of SA-iPLS for the test samples
|
Table 1. Mass fraction of potassium element in the sample set
|
Table 2. Optimal characteristic bands screened by different models
|
Table 3. Modeling results of different models
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