期刊论文

Calibration transfer on tobacco NIR spectra with different physical states

中文

湖南农业大学学报(自然科学版)

1007-1032

2017

43

2

151-155

10.13331/j.cnki.jhau.2017.02.007

中国烟草总公司云南省公司科技项目

本校为第一机构

采用近红外光谱仪采集整烟叶、卷烟丝和烟叶粉末光谱数据,并采用流动分析仪测定烟碱含量,利用偏最小二乘法建立烟叶烟碱的光谱预测模型,再通过斜率截距算法(SBC)、分段直接标准化算法(PDS)和典型相关分析算法(CCA)3种模型转移算法,将整烟叶、卷烟丝和烟叶粉末便携式近红外光谱转移到粉末状烟叶傅立叶近红外光谱模型上,比较分析预测均方根误差值(RMSEP)。结果表明:烟叶粉末烟碱近红外光谱预测模型经SBC、PDS和CCA算法模型转移后的RMSEP值分别为0.741 0、0.736 5、0.298 2,卷烟丝的RMSEP值分别为0.725 0、0.513 2、 0.222 2,整烟叶的RMSEP值分别为0.712 6、0.446 6、0.333 9,CCA算法模型转移优于S...

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...