| 时频分析在非平稳信号消噪中的应用 |
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| 作者单位： | 兰州石化职业技术学院 甘肃兰州730060(刘伟)，兰州理工大学 甘肃兰州730050(文如泉)，国家林业局北京林业机械研究所 北京100029(白崇彪) |
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| 摘 要： | 文章用时频分析方法中的傅里叶变换和小波变换方法对非平稳信号进行噪声消除,并根据仿真,就这两种方法对信号消噪处理结果,比较傅里叶变换和小波变换这两种方法的优缺点。
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| 关 键 词： | 傅里叶变换 小波分析 非平稳信号 消噪 |
Application of Time-frequency Analysis Method to Eliminate the Noise in Non-stationary Signal |
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| Authors: | Liu Wei Wen Ruquan Bai Chongbiao |
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| Institution: | Liu Wei1,Wen Ruquan2,Bai Chongbiao3 |
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| Abstract: | This article carries with Fourier transform method and the Wavelet transform method of the time-frequency analysis method to eliminate the noise in the non-stationary signal. And according to the simulation, we can find the advantages and disadvantages of the two methods---Fourier transform method and the Wavelet transform method in results of the signal noise-eliminating process. |
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| Keywords: | The Fourier transformation The Wavelet analysis The non-stationary signal Elimination of the noise |
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