This article systematically analyzes several traditional pretreatment methods for Near-infrared spectra, and discusses the character and the field they can be used in.
本文系统地分析了几种传统的光谱数据预处理方法，指出了这些方法各自的特点及适用范围。
The principle of NIRS, some methods of modeling, and the spectra data pretreatment were reviewed.
介绍了近红外光谱分析的技术原理，常用的几种建模方法以及各自的特点。
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