| 小波分析在信号调制方式识别中的应用 |
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| 引用本文： | 王丽娜,刁文静.小波分析在信号调制方式识别中的应用[J].无线电工程,2006,36(6):54-56. |
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| 作者姓名： | 王丽娜 刁文静 |
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| 作者单位： | 中国电子科技集团公司第54研究所,河北,石家庄,050081 |
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| 摘 要： | 从小波变换的基本概念出发,简要介绍了小波变换在信号时-频分析中的变焦特性。将小波分析理论用于信号识别时,主要是利用检测信号的奇异点来实现。以PSK、FSK、QAM信号的识别为例,详细分析了PSK、FSK、QAM信号的小波域特征,说明了小波变换的这一特性在信号调制方式识别中的应用。
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| 关 键 词： | 小波分析 调制 识别 傅里叶变换 |
| 收稿时间： | 2005-11-16 |
| 修稿时间： | 2005年11月16 |
Application of Wavelet Analysis in Signal Modulation Identification |
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| WANG Li-na,DIAO Wen-jing.Application of Wavelet Analysis in Signal Modulation Identification[J].Radio Engineering of China,2006,36(6):54-56. |
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| Authors: | WANG Li-na DIAO Wen-jing |
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| Affiliation: | The 54th Research Institute of CETC, Shijiazhuang Hebei 050081, China |
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| Abstract: | From the basic conception of wavelet transformation,we discuss briefly the zooming characteristics of wavelet transformation in time-frequency domain analysis in this paper.For the application of wavelet analysis in the signal identification,the implementation method is to use the singular point of detection signal.And then we analyze in detail the characteristics of wavelet domain of three kinds of different modulation type signals including PSK,FSK and QAM signals.Finally,we illustrate the application of wavelet transformation in the signal modulation identification. |
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| Keywords: | wavelet analysis modulation identification FFT |
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