| 用小波变换进行信号特征检测的原理与方法 |
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| 引用本文： | 聂永安,崔晓峰,陈宇坤.用小波变换进行信号特征检测的原理与方法[J].地震地磁观测与研究,1999,20(3):24-30. |
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| 作者姓名： | 聂永安 崔晓峰 陈宇坤 |
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| 作者单位： | 天津市地震局 中国天津,300201 |
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| 摘 要： | 在前人工作的基础上，我们运用卷积来定义一个连续信号的二进小波变换。在考虑小波函数的相位特征基础上给出了其重现公式。另外，本文论述了这种小波变换定义能直接用于信号特征的检测，并给出了可用于信号奇异性分析的小波函数和尺度函数。
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| 关 键 词： | 小波分析 二进小波变换 小波函数 信号特征检测 |
The principle and method for signal detection through wavelet transform |
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| Nie Yongan,Cui Xiaofeng,Chen Yukun.The principle and method for signal detection through wavelet transform[J].Seismological and Geomagnetic Observation and Research,1999,20(3):24-30. |
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| Authors: | Nie Yongan Cui Xiaofeng Chen Yukun |
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| Abstract: | Based on the previous results in wavelet research, a definition of binary wavelet transform for continuous signals is given in the form of convolution in this paper.The reconstructing formula are represented in time and frequency domain by considering the phase characteristics of wavelet function.The results show that such a definition can be directly used in detecting useful signals.Finally,a singular analyzing wavelet and its scaling function are derived,which are commonly used in signal detection. |
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| Keywords: | wavelet analysis binary wavelet transform wavelet function signal detection |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
