The Highest Proportion of Tobacco Materials in the Blend Analysis Using PPF Projection Method for the Near-Infrared Spectrum and Monte Carlo Method
MI Jin-rui1, MA Xiang2，ZHANG Ya-juan3，WANG Yi2，WEN Ya-dong2，ZHAO Long-lian3，LI Jun-hui3*， ZHANG Lu-da1
1. College of Science, China Agricultural University, Beijing 100193, China 2. Hongta Tobacco (Group) Co., Ltd., Yuxi 653100, China 3. College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China
Abstract：The present paper builds a model based on Monte Carlo method in the projection of the blending tobacco. This model is made up of two parts: the projecting points of tobacco materials, whose coordinates are calculated by means of the PPF (projection based on principal component and Fisher criterion) projection method for the tobacco near-infrared spectrum; and the point of tobacco blend, which is produced by linear additive to the projecting point coordinates of tobacco materials. In order to analyze the projection points deviation from initial state levels, Mente Carlo method is introduced to simulate the differences and changes of raw material projection. The results indicate that there are two major factors affecting the relative deviation: the highest proportion of tobacco materials in the blend, which is too high to make the deviation under control; and the quantity of materials, which is so small to control the deviation. The conclusion is close to the principle of actual formulating designing, particularly, the more in the quantity while the lower in proportion of each. Finally the paper figures out the upper limit of the proportions in the different quantity of materials by theory. It also has important reference value for other agricultural products blend.
Key words：Reduction of dimensionality and projection method;Stochastic simulation method;Near-infrared spectrume
米津锐1，马 翔2，张雅娟3，王 毅2，温亚东2，赵龙莲3，李军会3*，张录达1 . 基于近红外光谱投影及蒙特卡洛方法的烟叶配方比例上限分析 [J]. 光谱学与光谱分析, 2011, 31(04): 915-919.
MI Jin-rui1, MA Xiang2，ZHANG Ya-juan3，WANG Yi2，WEN Ya-dong2，ZHAO Long-lian3，LI Jun-hui3*， ZHANG Lu-da1 . The Highest Proportion of Tobacco Materials in the Blend Analysis Using PPF Projection Method for the Near-Infrared Spectrum and Monte Carlo Method . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(04): 915-919.
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