| 时频域分析中几种傅里叶变换的比较 |
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| 引用本文： | 王益艳. 时频域分析中几种傅里叶变换的比较[J]. 达县师范高等专科学校学报, 2013, 23(5): 28-32 |
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| 作者姓名： | 王益艳 |
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| 作者单位： | 四川文理学院物理与机电工程学院,四川达州,635000 |
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| 基金项目： | 四川省教育厅一般科研项目（13ZB0098）;四川文理学院重点科研项目（2012Z002Z） |
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| 摘 要： | 在时频域分析中,傅里叶变换是一种非常重要的工具,尤其是在快速傅里叶算法FFT出现以后,它在信号分析和处理中得到了广泛的应用.从频谱分析的角度,对常见的四种傅里叶变换进行了对比研究,厘清了它们之间的内在联系,以使人们加深对傅里叶变换本质的理解.
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| 关 键 词： | 时频域分析 傅里叶变换 频谱分析 采样 周期延拓 |
A Comparison of Fourier Transforms in Time -freiluency Domain Analysis |
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| WANG Yi-yan. A Comparison of Fourier Transforms in Time -freiluency Domain Analysis[J]. Journal of Daxian Teachers College, 2013, 23(5): 28-32 |
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| Authors: | WANG Yi-yan |
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| Affiliation: | WANG Yi - yan Physies and Electronic Engineering Department of Sichuan University of Arts and Science, Dazhou Sichuan 635000, China) |
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| Abstract: | In the field of time -frequency domain analysis, the Fourier transform plays an important role. Especially, when its tklst and efficient algorithm FFT is given, it is widely used for signal analysis and processing. The comparison is made of the four common Fourier transforms and the relationship is analyzed by an example in order to understand the essence of four kinds of Fou- rier transform deeply. |
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| Keywords: | time - frequency domain analysis fourier transform spectral analysis sampling periodic extension |
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