An Improved Background-Correction Algorithm for Raman Spectroscopy Based on the Wavelet Transform

doi:10.1177/0003702818805116

CIOMP OpenIR

	An Improved Background-Correction Algorithm for Raman Spectroscopy Based on the Wavelet Transform
	M.B.Chi; X.X.Han; Y.Xu; Y.Wang; F.F.Shu; W.C.Zhou; Y.H.Wu
	2019
发表期刊	Applied Spectroscopy
ISSN	0003-7028
卷号	73 期号:1 页码:78-87
摘要	In the traditional background correction algorithm based on the wavelet transform, approximation coefficients considered as frequency responses of background signal are usually set to zero. However, there are many meaningless negative values generated in the background-corrected spectrum because of the calibration errors of this algorithm. Intensities of some weak peaks even become negative and these peaks will disappear after the calibration of negative values. To solve these problems for the background correction of Raman spectrum, an improved intelligent algorithm which utilizes a suppression coefficient to modify approximation coefficients is proposed in this paper. A series of simulation analyses, as well as experimental investigations, are made to test the performance of this algorithm. It is proved that the use of the suppression coefficient could increase the background correction accuracy and decrease the number of meaningless negative values in the reconstructed spectra, which will prevent the disappearance of weak Raman peaks after the calibration of negative values and increase the sensitivity of Raman spectral analysis.
关键词	Raman spectroscopy,background correction,signal processing,wavelet,transform,spectra
DOI	10.1177/0003702818805116
URL	查看原文
收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/63429
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	M.B.Chi,X.X.Han,Y.Xu,et al. An Improved Background-Correction Algorithm for Raman Spectroscopy Based on the Wavelet Transform[J]. Applied Spectroscopy,2019,73(1):78-87.
APA	M.B.Chi.,X.X.Han.,Y.Xu.,Y.Wang.,F.F.Shu.,...&Y.H.Wu.(2019).An Improved Background-Correction Algorithm for Raman Spectroscopy Based on the Wavelet Transform.Applied Spectroscopy,73(1),78-87.
MLA	M.B.Chi,et al."An Improved Background-Correction Algorithm for Raman Spectroscopy Based on the Wavelet Transform".Applied Spectroscopy 73.1(2019):78-87.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
An Improved Backgrou（893KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载