连续小波变换-独立成分回归算法及其在多组分分析中的应用
ALGORITHM OF CONTINUOUS WAVELET TRANSFORM-INDEPENDENT COMPONENT REGRESSION AND ITS APPLICATION TO MULTICOMPONENT ANALYSIS
摘 要
采用连续小波变换(CWT)对光谱数据进行处理,用独立成分分析(ICA)进行特征提取,再用回归分析方法对被测组分进行测定,建立了连续小波变换-独立成分回归(CWT-ICR)方法.方法用于肉样品中水分、脂肪和蛋白质多组分的同时测定,所得结果与化学法测得结果相符.
连续小波变换
近红外光谱
肉样品
Independent component analysis
Continuous wavelet transform
Near infrared spectrometry
Meat sample
Abstract
A new method of model construction based on continuous wavelet transform (CWT) and independent component regression (ICR) was proposed.In its application to near infrared spectrometry,the data of IR spectra were treated with CWT to remove the noise and spectral background,their characteristic matrix were then extracted by the independent component analysis,and finally,determination of the individual components of the sample was performed by the regression analysis.This new chemometric method has been applied to the simultaneous determination of contents of moisture,fat and protein in meat samples,showing that the results predicted by CWT-ICR method were in consistency with the results obtained by chemical analysis.
中图分类号 O65
所属栏目 试验与研究
基金项目
收稿日期 2005/10/28
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备注侯振雨(1965-),男,河南卫辉人,副教授,从事分析测试技术方面的研究工作.
引用该论文: HOU Zhen-yu,YAO Shu-wen,GU Yong-qing,LI Ying. ALGORITHM OF CONTINUOUS WAVELET TRANSFORM-INDEPENDENT COMPONENT REGRESSION AND ITS APPLICATION TO MULTICOMPONENT ANALYSIS[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2006, 42(7): 517～520
侯振雨,姚树文,谷永庆,李英. 连续小波变换-独立成分回归算法及其在多组分分析中的应用[J]. 理化检验－化学分册, 2006, 42(7): 517～520
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参考文献
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【3】Cardoso J F,Laheld B H.Equivariant Adaptive Source Separation[J].IEEE Trans.on Signal Processing,1996,44(12):3017．
【4】Hyvarinen A.Sparse Code Shrinkage:Denoising of NonGaussian Data by Maxium Likelihood Estimation[J].Neural Computation,1999,11:1739．
【5】Cao L J,Chua K S.A Comparison of PCA,KPCA and ICA for Dimensionality Reduction in Support Vector Machine[J].Neurocomputing,2003,55(1-2):321．
【6】Cardoso J F.Blind Beamforming for Non Gaussian Signals[J].IEE Proceedings-F,1993,140(6):362．
【7】毕贤,李通化,吴亮.独立组分分析在红外光谱分析中的应用[J].高等学校化学学报,2004,25(6):1023．
【8】Ma C X,Shao X G.Continuous Wavelet Transform Applied to Removing the Fluctuating Background in Near-Infrared Spectra[J].Journal of Chemical Information and Computer Science,2004,44(3):907．
【9】侯振雨,王国庆,蔡文生,等.连续小波变换-支持向量机回归用于植物样品多组分分析[J].计算机与应用化学,2005,22(9):714．
【10】朱凤岗,朱雪田.自适应中值滤波用于色谱信号去噪的研究[J].理化检验-化学分册,2004,40(4):200．
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