| 基于多重小波变换的自适应脉搏信号去噪 |
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| 引用本文： | 陈卫东,孙海全.基于多重小波变换的自适应脉搏信号去噪[J].电子测量技术,2008,31(8). |
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| 作者姓名： | 陈卫东 孙海全 |
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| 作者单位： | 燕山大学,秦皇岛,066004 |
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| 摘 要： | 小波变换在生物医学信号降噪处理中有着广泛的应用,但小波降噪处理中的软硬阈值法本身都有一定的局限性,而且还除去了部分有用信号,降噪效果不太理想。本文基于小波分析的特点,提出了一种对信号进行多重小波变换的自适应去噪法,该方法不仅克服了小波去噪软硬阈值法的局限性,而且解决了自适应滤波中参考信号选取难的问题,将该方法用于脉搏信号降噪,得到了满意的去噪效果。
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| 关 键 词： | 多重小波变换 自适应滤波 脉搏信号 去噪 |
Adaptive de-noising of pulse signal based on multiple wavelet transform |
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| Chen Weidong,Sun Haiquan.Adaptive de-noising of pulse signal based on multiple wavelet transform[J].Electronic Measurement Technology,2008,31(8). |
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| Authors: | Chen Weidong Sun Haiquan |
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| Abstract: | Wavelet transform is used widely in biomedical signal processing.But the wavelet de-noising Flex threshold method itself has some limitations,and removes some useful signal,but de-noising result is bad.Based on the characteristics of wavelet analysis,this paper proposes an adaptive de-noising method that combines multiple wavelet transform.This method helps overcome the difficulty of choosing reference signal and soft threshold limitations,and is the solution of the adaptive filter selecting reference signal.Applying it in de-noising pulse signal makes the good effect. |
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| Keywords: | multiple wavelet transform adaptive filtering pulse signal de-noising |
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