| 利用子波变换检测信号波形 |
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| 引用本文： | 王俊,陈逢时.利用子波变换检测信号波形[J].西安电子科技大学学报,1996,23(2):183-188. |
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| 作者姓名： | 王俊 陈逢时 |
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| 作者单位： | 西安电子科技大学电子工程研究所，西安电子科技大学检测与仪器系 |
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| 摘 要： | 利用子波变换的多分辨性质，基于信号和随机噪声在子波变换域中不同的模极大值系数特征，设计并实现了一种实用的波形检测器，对不同信号的仿真处理结果表明该方法既能提取一定的信噪比改善增益，又能保持对待检信号的良好分辨，适合于对一类非平稳信号进行时变滤波处理。
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| 关 键 词： | 子波变换 特征提取 信号波形 检测 |
An application of wavelet transform in signal waveform detection |
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| Wang Jun.An application of wavelet transform in signal waveform detection[J].Journal of Xidian University,1996,23(2):183-188. |
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| Authors: | Wang Jun |
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| Abstract: | Based on the multiresolution property of wavelet transform,a pracatical waveform detector is presented by using the difference of WT modulus maxima evolution behaviors between signal and random noise in multiscale space. The simulation results show that this method is effective in processing a class of nonstational signals with a useful SNR gain,with a good resolution on irregulraity information of the signal to be processed. |
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| Keywords: | s: wavelet transform waveform detection property extract |
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