基于移动窗口相关系数光谱法的白酒品牌快速判别技术研究

发布时间：2018-04-27 05:42

本文选题：移动窗口 + 相似度　；参考：《光谱学与光谱分析》2017年10期

【摘要】：为满足白酒品牌判别领域快速检测的迫切需求,提出了一种以紫外光谱为输入,移动窗口相关系数法为手段的白酒品牌快速判别新方法。研究以海之蓝酒作为对象品牌,实验结果显示各批次海之蓝酒在实验波长区间存在较高的吻合一致性,基于紫外光谱原始谱图的相关系数值和基于移动窗口光谱计算所得的相关系数值均达到0.99以上。由于其他洋河系列白酒与海之蓝酒均属于洋河酒厂生产,原料来源、生产制备工艺等存在较高的相似性,此时若仅使用紫外光谱原始谱图数据结合相似度算法进行品牌判别,则定量化的判别区分存在一定困难。移动窗口法可有效提高谱图细节差异,突出光谱在特征谱段的形状、强度、变化趋势差异,提高实验谱图在细节结构差异辨认分析能力。经过研究筛选,发现以移动窗口相关系数结合紫外光谱特征谱段(270~295nm)可提高洋河系列酒间的谱图差异,实现这种有较高相似性白酒品牌的判别区分。此外,市售六种其他品牌白酒及乙醇作为对照组,进一步论证了该方案的可行性。该研究的创新之处在于提出了一种移动窗口相关系数光谱法进行白酒品牌快速判别分析的新思路,该方法同时具备速度快,操作简便等优点,具有较高的实际应用潜在价值,并可为其他食品的质量安全判别分析研究提供借鉴。
[Abstract]:In order to meet the urgent need of rapid detection in the field of liquor brand identification, a new method of rapid identification of liquor brand was proposed, which was based on UV spectrum and moving window correlation coefficient method. The experimental results show that there is a high consistency in the experimental wavelength range of each batch of Haizhi-blue wine. The correlation coefficients based on the original UV spectrum and the moving window spectrum are both above 0.99. Because other Yanghe series liquor and Haizhi-blue liquor belong to Yanghe distillery, there is a high similarity in raw material source and production preparation technology. At this time, if only the original spectrum data of ultraviolet spectrum combined with similarity algorithm are used to distinguish the brand, There are some difficulties in quantitative discrimination. The moving window method can effectively improve the detail difference of spectrum, highlight the difference of shape, intensity and variation trend of spectrum in characteristic spectrum, and improve the ability of distinguishing and analyzing the difference of experimental spectrum in detail structure. It was found that the correlation coefficient of moving window combined with the characteristic spectrum of UV spectrum could improve the spectral difference among Yanghe series liquor and realize the discrimination of this liquor brand with high similarity. In addition, six other brands of liquor and ethanol on the market as control group, further demonstrated the feasibility of the scheme. The innovation of this study is that a new idea of fast discriminant analysis of liquor brands by moving window correlation coefficient spectrum method is put forward. This method has the advantages of high speed and easy operation, and has high potential value in practical application. It can be used for reference for other food quality and safety discriminant analysis.
【作者单位】：南京财经大学管理科学与工程学院;江苏省质量安全工程研究院;西南交通大学数学学院;浙江工商大学管理工程与电子商务学院;
【基金】：江苏省高校自然科学研究面上项目(16KJB150015) 国家自然科学基金项目(61602217,71373117,71433006)资助
【分类号】：O657.3;TS262.3

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