| 基于快速傅立叶变换的信号频谱分析仿真 |
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| 引用本文： | 曾日波.基于快速傅立叶变换的信号频谱分析仿真[J].科技广场,2006(7):17-19. |
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| 作者姓名： | 曾日波 |
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| 作者单位： | 江西财经大学电子学院,南昌,330013 |
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| 摘 要： | 信号序列的DFT本身就是信号频谱的采样集,所以DFT可直接用于分析信号的频谱。快速傅立叶变换是一种有效、实用的信号DFT算法。文章通过对DIT-FFT算法的详细分析,提出了一种计算机软件仿真信号频谱分析方案,并给出了关键算法的C语言程序。
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| 关 键 词： | 时间抽取FFT 蝶形算子 原位计算 码位倒置 |
| 文章编号： | 0671-4792-（2006）7-0051-03 |
the Simulation for Signal Frequency Spectrum Analysis Based on Fast Fourier Transforms |
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| Zeng Ribo.the Simulation for Signal Frequency Spectrum Analysis Based on Fast Fourier Transforms[J].Science Mosaic,2006(7):17-19. |
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| Authors: | Zeng Ribo |
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| Abstract: | Signal sequence DFT is a signal frequency spectrum sampling sets, therefore DFT can be directly used for analysis of signals frequency spectrum. Fast Fourier transformation is an effective, practical DFT algorithm. The article detailed analysis through DIT-FFT algorithm, presented a kind of analysis program about computer software simulation signal spectral, and given a key algorithm C language procedures. |
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| Keywords: | DIT-FFT Algorithm Butterfly Operator Situ Computation Binary Code Inversion |
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