A new method for quantitative prediction of total sugar (TS) and total volatile alkali (TVA) content in tobacco samples from near infrared (NIR) spectrometry was proposed.

• 摘要将主成分分析(PCA)用于近红外光谱的特征提取，并与支持向量回归(SVR)相结合，实现了主成分分析-支持向量回归(PCA-SVR)用于近红外光谱定量分析的建模方法。