如何快速、准确地进行滤光片波长组合的优选,是滤光片型近红外光谱仪器研究的一个关键技术。利用组合生成算法与多元线性回归分析相结合,并运用计算机编程语言分析了掺假山茶油的近红外光谱吸光度矩阵,优选出不同组合数下滤光片波长组合。该方法可在全光谱波长范围内快速的实现滤光片的优选,且建立的定量分析模型简单、精度高、稳定。 How to quickly and accurately select the optimal filter wavelength combination is a key technology in the research of filter type near infrared spectroscopy. The combination generation algorithm was combined with multivariate linear regression analysis. The NIR spectral absorbance matrix of adulterated camellia oil was analyzed by computer programming language, and the filter wavelength combinations with different combinations were optimized. The method can quickly realize the optimization of the filter in the whole spectrum wavelength range, and the established quantitative analysis model is simple, high precision and stable.