| 平滑、导数、基线校正对近红外光谱PLS定量分析的影响研究 |
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| 引用本文： | 郑咏梅,张铁强,张军,陈星旦,申铉国.平滑、导数、基线校正对近红外光谱PLS定量分析的影响研究[J].光谱学与光谱分析,2004,24(12):1546-1548. |
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| 作者姓名： | 郑咏梅 张铁强 张军 陈星旦 申铉国 |
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| 作者单位： | 1. 吉林大学物理学院,物理教学研究中心,吉林,长春,130025
2. 中国科学院长春光学精密机械与物理研究所,吉林,长春,130022 |
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| 摘 要： | 基于偏最小二乘法 ,利用平滑、导数、基线校正预处理手段 ,对近红外光谱进行了定量分析 ,比较了分析结果 ,给出了不同预处理方法的PRESS值和RMSEC的值 ,比较并选取了最佳预处理方法。在平滑预处理方法中 ,比较了不同平滑点数对预测的影响 ,确定了最佳平滑点数 ,通过采用PLS回归分析 ,与原始光谱数据回归比较 ,结果令人满意。
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| 关 键 词： | 平滑、导数、基线校正 近红外 PLS 定量分析 |
| 文章编号： | 1000-0593(2004)12-1546-03 |
| 修稿时间： | 2003年2月16日 |
Influence of Smooth,1st Derivative and Baseline Correction on the Near-Infrared Spectrum Analysis with PLS |
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| ZHENG Yong-mei ,ZHANG Tie-qiang ,ZHANG Jun ,CHEN Xing-dan ,SHEN Xuan-guo . Physics College,Jilin University,Changchun ,China . Changchun Institute of Optics,Fine Mechanics and Physics,Changchun ,China.Influence of Smooth,1st Derivative and Baseline Correction on the Near-Infrared Spectrum Analysis with PLS[J].Spectroscopy and Spectral Analysis,2004,24(12):1546-1548. |
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| Authors: | ZHENG Yong-mei ZHANG Tie-qiang ZHANG Jun CHEN Xing-dan SHEN Xuan-guo Physics College Jilin University Changchun China Changchun Institute of Optics Fine Mechanics and Physics Changchun China |
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| Institution: | Physics College, Jilin University, Changchun 130025, China. |
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| Abstract: | This paper studied the influence of using pre-procession such as smooth, 1st derivative and baseline correction on the analysis of near-infrared spectrum. Comparing the analysis results by the pre-procession methods, and using PLS arithmetic, the best pre-procession was determined. In smooth pre-procession method, the best smooth points were proposed for regression using PLS. The analysis result is satisfactory. |
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| Keywords: | Smooth 1st derivative baseline correction Near-infrared PLS Quantitative analysis |
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