| 一种提取含噪声信号中重叠峰位置的新方法 |
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| 引用本文： | 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. |
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| 作者姓名： | 张永清 王立世 莫金垣 |
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| 作者单位： | 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 |
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| 基金项目： | 国家自然科学基金资助项目 (2 0 0 0 5 0 0 3)，华南理工大学自然科学基金资助项目~~ |
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| 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．
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| 关 键 词： | 连续样条小波变换 峰位置 含噪声重叠信号 |
A Novel Method for Determining the Peak Position from Noisy Overlapped Signals |
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| Abstract.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. |
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| Authors: | Abstract |
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| 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 secondorder B-splinewavelet as analyzing wavelet.Under suitable dilation,the processed signal is signal obtained by the 4th order differential.The results show that the resolution and the signal-to-noise ration of signal processed by CSWT are enhanced comparing with those of overlapped signal.By CSWT,one can obtain the number of overlapped peaks and the corresponding peak posititions form noisy overlapped signals. |
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| Keywords: | continuous spline wavelet transform peak position noisy overlapped signals |
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