一种提取含噪声信号中重叠峰位置的新方法∗

华南理工大学学报(自然科学版) ›› 2003, Vol. 31 ›› Issue (10): 55-57.

一种提取含噪声信号中重叠峰位置的新方法∗

张永清1 王立世1 莫金垣2

1．华南理工大学应用化学系广东广州510640；2．中山大学化学与化学工程学院广东广州510275

出版日期:2003-10-20 发布日期:2022-06-02
作者简介:张永清（1971－）女讲师博士主要从事电分析化学和化学计量学研究．
基金资助:
国家自然科学基金资助项目（20005003）；华南理工大学自然科学基金资助项目

A Novel Method for Determining the Peak Position from Noisy Overlapped Signals ∗

Zhang Y ong-qing 1 Wang L-i shi 1 Mo Jin-yuan 2

1．Dept．of Applied ChemistrySouth China Univ．of Tech．Guangzhou510640China； 2．School of Chemistry and Chemical EngineeringZhongshan Univ．Guangzhou510275China

Online:2003-10-20 Published:2022-06-02
About author:Zhang Yong － qing （born in 1971）femalelecturerPh．D．mainly researches on electroanalysis chemistry and chemometrics
Supported by:
Supported by the National Natural Science Foundation of China（20005003）and the Natural Science Foundation of South China University of Technology

摘要/Abstract

摘要： 以二阶 B－样条小波为分析小波提出了一种提取分析化学中含噪声重叠峰位置的新方法———连续样条小波变换法．在合适的尺度下处理后的信号类似于信号的四阶导数．结果表明采用连续样条小波变换法能使峰变窄并能提高信号的信噪比同时还能从含噪声重叠信号中直接得到重叠峰的数目及其相应的峰位置．

关键词: 连续样条小波变换, 峰位置, 含噪声重叠信号

Abstract: A new method called continuous spline wavelet transform（CSWT）for determining the peak position of noisy overlapped signals in analytical chemistry was proposed by selecting the second order B－spline wavelet as analyzing wavelet．Under suitable dilationthe processed signal is similar to the signal obtained by the4th order differential．The results show that the resolution and the signal－to－ noise ratio of signal processed by CSWT are enhanced comparing with those of overlapped signal．By CSWTone can obtain the number of overlapped peaks and the corresponding peak positions from noisy overlapped signals．

Key words: continuous spline wavelet transform, peak position, noisy overlapped signal

中图分类号:

O657

张永清王立世莫金垣. 一种提取含噪声信号中重叠峰位置的新方法∗ [J]. 华南理工大学学报(自然科学版), 2003, 31(10): 55-57.

Zhang Y ong-qing Wang L-i shi Mo Jin-yuan . A Novel Method for Determining the Peak Position from Noisy Overlapped Signals ∗[J]. Journal of South China University of Technology(Natural Science Edition), 2003, 31(10): 55-57.