Monitoring indoor harmful gas can obtain the infrared spectra of mixed harmful gases.Since the absorption bands of mixed gases overlap and their qualitative and quantitative analyses are not easy,feature extraction me...Monitoring indoor harmful gas can obtain the infrared spectra of mixed harmful gases.Since the absorption bands of mixed gases overlap and their qualitative and quantitative analyses are not easy,feature extraction method based on joint approximative diagonalization of eigenmatrix（JADE）is proposed.By fully mining the hidden information of original data and analyzing higher-order statistics information of the data,each substance spectrum in the mixed gas can be accurately distinguished.In addition,a multi-dimensional data quantitative analysis model of the extracted independent source is established by using support vector machine（SVM）based on regular theory.The experimental results show that the correlation coefficients of the components of mixed gases is above 0.999 1by quantitative analysis,which verifies the accuracy of this feature extraction method.展开更多
检测室内有害气体得到的红外光谱为混合有害气体的红外光谱,针对吸收谱带相互交叠的混合气体定性定量不容易的问题,提出基于特征矩阵联合近似对角化(joint approximative diagonalization of eigenmatrix,JADE)的特征提取方法,该方法通...检测室内有害气体得到的红外光谱为混合有害气体的红外光谱,针对吸收谱带相互交叠的混合气体定性定量不容易的问题,提出基于特征矩阵联合近似对角化(joint approximative diagonalization of eigenmatrix,JADE)的特征提取方法,该方法通过分析数据的高阶统计量信息,充分挖掘原始数据隐含的信息,以便准确地区分出混合气体中各物质的光谱,同时应用基于正则理论的支持向量机(SVM)对提取出来的独立信号源建立多维数据定量分析的模型。实验结果表明,混合气体中各组分的定量分析相关系数均保持在0.9991以上,验证了该特征提取方法的准确性。展开更多
基金National Natural Science Foundation of China(No.61127015)
文摘Monitoring indoor harmful gas can obtain the infrared spectra of mixed harmful gases.Since the absorption bands of mixed gases overlap and their qualitative and quantitative analyses are not easy,feature extraction method based on joint approximative diagonalization of eigenmatrix（JADE）is proposed.By fully mining the hidden information of original data and analyzing higher-order statistics information of the data,each substance spectrum in the mixed gas can be accurately distinguished.In addition,a multi-dimensional data quantitative analysis model of the extracted independent source is established by using support vector machine（SVM）based on regular theory.The experimental results show that the correlation coefficients of the components of mixed gases is above 0.999 1by quantitative analysis,which verifies the accuracy of this feature extraction method.
文摘检测室内有害气体得到的红外光谱为混合有害气体的红外光谱,针对吸收谱带相互交叠的混合气体定性定量不容易的问题,提出基于特征矩阵联合近似对角化(joint approximative diagonalization of eigenmatrix,JADE)的特征提取方法,该方法通过分析数据的高阶统计量信息,充分挖掘原始数据隐含的信息,以便准确地区分出混合气体中各物质的光谱,同时应用基于正则理论的支持向量机(SVM)对提取出来的独立信号源建立多维数据定量分析的模型。实验结果表明,混合气体中各组分的定量分析相关系数均保持在0.9991以上,验证了该特征提取方法的准确性。
