湖南农业大学学报（自然科学版）2017，Vol.43Issue(2)：151-155,5.DOI:10.13331/j.cnki.jhau.2017.02.007
不同物理形态烟叶样品的模型转移研究
Calibration transfer on tobacco NIR spectra with different physical states
摘要
Abstract
In order to use a portable near infrared spectrometer preferably and quickly to conduct the real–time on scene test in tobacco production, the measured spectrum was usually moved to the spectral model already established in laboratory by mathematical method to directly conduct the forecast analysis, which saves cost compared with rebuilding a model. In this paper, slope intercept algorithm (SBC), piecewise direct standardization (PDS) and canonical correlation analysis (CCA) were used and compared in transfer of portable near infrared spectrum of the whole leaf, cigarette silk and powder to the powdered tobacco on Fourier near–infrared spectroscopy model, followed by predicting values of root mean square error (RMSEP). The results showed thatRMSEP value of near infrared spectrum of the powder, cigarette silk and whole leaf calibration transferred by SBC algorithm were 0.7365, 0.7988, 0.2986 respectively, by PDS were 0.8892, 0.6409, 0.3007 respectively, by CCA were 0.7165, 0.7613, 0.5369, respectively.RMSEP results after calibration transfer with CCA were better than those with SBC and PDS, and better theRMSEP predicted by rebuilt model using the portable near infrared spectrum directly.关键词
烟草/近红外光谱/模型转移/典型相关分析算法Key words
tobacco/near–infrared spectroscopy/calibration transfer/canonical correlation analysis分类
农业科技引用本文复制引用
谭观萍,易克,段志超,张发明,宾俊,范伟,周冀衡,王子维..不同物理形态烟叶样品的模型转移研究[J].湖南农业大学学报（自然科学版）,2017,43(2):151-155,5.基金项目
中国烟草总公司云南省公司科技项目(2015YN22) （2015YN22）
