| 基于小波的光谱信号基线校正和背景扣除 |
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| 引用本文： | 胡耀垓,赵正予,王刚.基于小波的光谱信号基线校正和背景扣除[J].华中科技大学学报(自然科学版),2011(6):36-40. |
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| 作者姓名： | 胡耀垓 赵正予 王刚 |
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| 作者单位： | 武汉大学电子信息学院; |
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| 基金项目： | 国家自然科学基金资助项目(60701020); 中央高校基本科研业务费专项资金资助项目(3103001) |
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| 摘 要： | 提出一种基于小波多分辨分析的光谱信号基线校正和背景扣除算法,对原始光谱进行小波去噪,应用小波多分辨分析对基线/背景预扣除,并基于一阶导数进行峰形修正,得到符合实际的校正光谱.对叠加曲线背景和线性背景的模拟光谱数据进行模拟实验.结果显示:该算法可用于多种类型的基线/背景校正场合,无须分析样品成分的先验知识,无须选择合适的背景校正点,也无须背景信号分布的数学假设,可应用于各类谱图的基线校正和背景扣除中.
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| 关 键 词： | 光谱 小波变换 多分辨分析 基线校正 背景扣除 去噪 |
Baseline correction and background elimination using wavelet transforms |
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| Hu Yaogai Zhao Zhengyu Wang Gang.Baseline correction and background elimination using wavelet transforms[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2011(6):36-40. |
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| Authors: | Hu Yaogai Zhao Zhengyu Wang Gang |
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| Institution: | Hu Yaogai Zhao Zhengyu Wang Gang(College of Electronic Information,Wuhan University,Wuhan 430079,China) |
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| Abstract: | On the basis of multi-resolution analysis,a new hybrid algorithm was proposed to eliminate the varying baseline correction or background of spectral signals,which is one of the main advantages provided by wavelet transform.The baseline/background has a low frequency.This method firstly split the signals into different frequency components,and then removes the varying low-frequency background.It is successfully applied to simulated spectra as an effective and practical tool for baseline correction and backgr... |
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| Keywords: | spectroscopy wavelet transform multi-resolution analysis baseline correction background elimination denoise |
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