| 基于小波变换的频谱细化分析方法 |
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| 引用本文： | 马建仓,吴启彬,薛建武,罗磊.基于小波变换的频谱细化分析方法[J].信号处理,1997(3). |
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| 作者姓名： | 马建仓 吴启彬 薛建武 罗磊 |
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| 作者单位： | 西北工业大学 |
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| 摘 要： | 小波理论是傅里叶分析这一学科半个世纪以来的工作结晶，已成功应用于信号分析、图像处理及非线性科学等方面。本文基于小波变换可提取信号所需频率成分的特性，提出了小波变换频谱细化方法，文中介绍了小波变换频谱细化的原理和步骤，进行了计算验证，并与复调制ZOOM－FFT方法进行了比较，结果表明，小波变换细化谱方法，可得到比复调制ZOOM—FFT方法更细密的结果，小波变换细化谱方法实现起来更简单、容易，但计算量较大。
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| 关 键 词： | 频谱细化 小波变换 谱分析 |
Spectrum Zoom Analysis Method Based on Wavelet Transform |
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| Ma Jiancang, Wu Qibin, Xue Jianwu, Luo Lei.Spectrum Zoom Analysis Method Based on Wavelet Transform[J].Signal Processing,1997(3). |
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| Authors: | Ma Jiancang Wu Qibin Xue Jianwu Luo Lei |
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| Abstract: | Wavelet theory is thee development of the Fourier analysis. It was successfully used in signal processing, image processing and nonlinear science etc. Based on the time-frequency localization character of wavelet transform, this paper presents the wavelet spectrum zoom method. The principle and steps of the method are introduced. Compared to complex-modulated zoom-FFt method, the wavelet spectrum zoom method can get the better result. Wavelet spectrum zoom method is more convenient, but with greater calculation. |
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| Keywords: | Spectrum zoom Wavelet transform |
| 本文献已被 CNKI 等数据库收录！ |
