| 简谐信号的小波变换特性 |
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| 引用本文： | 陈奎孚,张森文.简谐信号的小波变换特性[J].暨南大学学报,2001,22(3):39-43. |
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| 作者姓名： | 陈奎孚 张森文 |
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| 作者单位： | 暨南大学应用力学研究所, |
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| 摘 要： | 根据小波变换的定义，研究了单频简谐信号的连续小波变换和离散小变换的特性，结果表明它与白噪声的特性显著不同，还发现了单频信号的离散小波变换的偏置现象。
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| 关 键 词： | 小波变换 信号处理 简谐信号 白噪声 阈值收缩法 降噪性能 偏置 |
| 文章编号： | 1000-9965(2001)03-0039-05 |
| 修稿时间： | 2000年12月25 |
On the characteristic of harmonic signal wavelet transform |
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| CHEN Kui-fu,ZHANG Sen-wen.On the characteristic of harmonic signal wavelet transform[J].Journal of Jinan University(Natural Science & Medicine Edition),2001,22(3):39-43. |
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| Authors: | CHEN Kui-fu ZHANG Sen-wen |
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| Abstract: | In the light of the definition of wavelet transform, the characteristics of harmonic signal wavelet transform (CHSWT) were investigated in the cases of continuous transform and discrete transform. The result shows that CHSWT is far more different from the characteristic of white noise wavelet transform. Furthermore, the CHSWT in discrete case manifests nonzero of mean value. |
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| Keywords: | wavelet transform signal processing harmonic signal |
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