| DFT递推算法及其应用 |
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| 引用本文： | 高潮,郁惟镛.DFT递推算法及其应用[J].电力系统保护与控制,2005,33(5):1-3. |
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| 作者姓名： | 高潮 郁惟镛 |
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| 作者单位： | 上海交通大学电气工程系,上海 200240 |
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| 摘 要： | 谐波分析是信号处理的重要内容,在生产、研究中应用极其广泛。离散傅里叶变换(DFT)是利用采样数据计算信号的频谱的一种数学工具,其计算量较大,难以用于在线实时频谱分析。该文系统介绍了DFT的递推算法,较好地解决了这一问题。
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| 关 键 词： | 傅里叶变换 DFT 算法 递推 |
| 文章编号： | 1003-4897(2005)05-0001-03 |
| 修稿时间： | 2004年7月12日 |
A recursive algorithm of DFT and its application |
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| GAO Chao,YU Wei-yong.A recursive algorithm of DFT and its application[J].Power System Protection and Control,2005,33(5):1-3. |
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| Authors: | GAO Chao YU Wei-yong |
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| Abstract: | Harmonic analysis plays an important role in signal processing and is widely used in production and research. Discrete Fourier Transform (DFT) is a powerful mathematical tool to calculate signal frequency spectrum from sampled data, but it is not very suitable for the real-time processing circumstance because of its large amount of calculation. This paper presents the recursive algorithms of DFT systematically, and the calculation burden decreases dramatically. Its effectiveness has been verified by numerical simulation. |
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| Keywords: | Fourier transform DFT algorithm recursive |
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