| 毛细管电泳激光诱导荧光检测信号的小波滤噪 |
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| 引用本文： | 刘中华,周平.毛细管电泳激光诱导荧光检测信号的小波滤噪[J].分析科学学报,2003,19(5):404-406. |
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| 作者姓名： | 刘中华 周平 |
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| 作者单位： | 武汉大学化学与分子学院,武汉,430072 |
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| 摘 要： | 采用小波滤噪方法对毛细管电泳激光诱导荧光检测信号进行了处理，研究了小波变换中小波基的选择及噪声阈值的选择对滤噪的影响。结果表明，采用DB4小波基能有效消除毛细管电泳激光诱导荧光检测信号中存在的噪声，使信噪比得到较大改善。
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| 关 键 词： | 毛细管电泳 激光诱导荧光检测 信号处理 小波变换 滤噪 |
| 文章编号： | 1006-6144(2003)05-0404-03 |
| 修稿时间： | 2003年1月5日 |
Eliminating Noise of LIF Detection Signal for Capillary Electrophoresis by Wavelet Transform |
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| Abstract: | A new wavelet de- noising method used in the process of LIF detection for capillary electrophoresis was reported. Confirmation of de- noising cutoff and choice of wavelet function were investigated. The experimental result showed that this DB wavelet could be used to pick up real signal and de- noise effectively, and signal to noise ratio was greatly improved. |
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| Keywords: | Wavelet transform Capillary electrophoresis De-noise |
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