Choice of Characteristic Near-Infrared Wavelengths for Soil Total Nitrogen Based on Successive Projection Algorithm

	Choice of Characteristic Near-Infrared Wavelengths for Soil Total Nitrogen Based on Successive Projection Algorithm
其他题名	论文其他题名
	Gao H. Z.; Lu Q. P.; Ding H. Q.; Peng Z. Q.
	2009
发表期刊	Spectroscopy and Spectral Analysis
ISSN	1000-0593
卷号	29 期号:11 页码:2951-2954
摘要	The present paper proposed how to select characteristic near-infrared wavelength for soil total nitrogen by using successive projection algorithm (SPA). Spectral data are compressed by SPA in the first place to obtain the raw wavelengths. Then the group of wavelengths derived from SPA is screened by their contributions to the total nitrogen. The insensitive wavelengths for total nitrogen are eliminated, improving the parsimony of the calibration model. For the 85 soil samples in total nitrogen, SPA was used to select the raw wavelengths. After screening on contribution, the number of wavelengths dropped from 12 by direct SPA to 6. Finally, the calibration model using wavelengths selected by screening on contribution after SPA showed the correlation coefficient (R(p)) of 0.913 and the root mean square error of prediction (RMSEP) of 0.011%. This model is as precise as the one before screening on contribution, and more precise than the result derived from partial least square (PLS) for the whole spectrum. The results demonstrate that the number of wavelengths selected by SPA can be reduced without significantly compromising prediction performance using the screening on contribution, The 6 selected total nitrogen wavelengths in this paper can be a reference for designing smart filter NIR spectrometer.
收录类别	SCI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/25649
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Gao H. Z.,Lu Q. P.,Ding H. Q.,et al. Choice of Characteristic Near-Infrared Wavelengths for Soil Total Nitrogen Based on Successive Projection Algorithm[J]. Spectroscopy and Spectral Analysis,2009,29(11):2951-2954.
APA	Gao H. Z.,Lu Q. P.,Ding H. Q.,&Peng Z. Q..(2009).Choice of Characteristic Near-Infrared Wavelengths for Soil Total Nitrogen Based on Successive Projection Algorithm.Spectroscopy and Spectral Analysis,29(11),2951-2954.
MLA	Gao H. Z.,et al."Choice of Characteristic Near-Infrared Wavelengths for Soil Total Nitrogen Based on Successive Projection Algorithm".Spectroscopy and Spectral Analysis 29.11(2009):2951-2954.

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