| 软件实现FFT运算减少运算量的途径 |
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| 引用本文： | 刘彬,吴嗣亮,姜万录.软件实现FFT运算减少运算量的途径[J].燕山大学学报,1987(4). |
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| 作者姓名： | 刘彬 吴嗣亮 姜万录 |
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| 作者单位： | 东北重型机械学院自动控制系，东北重型机械学院自动控制系，东北重型机械学院自动控制系 |
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| 摘 要： | 对所有四种类型的基2FFT算法,本文提出了其P值的简单求法(P为蝶形运算表达式中旋转因子的指数),並给出了编程中的几点重要技巧和软件实现的程序框图.这两部分工作能都使FFT处理程序的运算量减少,这对信号的实时处理是有意义的.
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| 关 键 词： | 基2FFT 旋转因子 指数 算法 软件 实现 |
The Way for Reducing Calculation Capacity in Realizing Calculations with Computer Language |
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| Liu Bin wu,Siliang,Jiang Wanlu.The Way for Reducing Calculation Capacity in Realizing Calculations with Computer Language[J].Journal of Yanshan University,1987(4). |
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| Authors: | Liu Bin wu Siliang Jiang Wanlu |
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| Institution: | Liu Bin wu;Siliang;Jiang Wanlu |
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| Abstract: | For all four types of base FFT calculation, simple methods of the getting their Ps are presented in this paper (P is an index of the rotating factor in the butterfly arithmetic expressicn). Sev-eral important skills for making computer language and program charts for realizing the types of calculation in programming are given. By all these work, the calculation capacity of computer language for realizing FFT processing can be reduced. It is very significant for digital signal real-time processing. |
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| Keywords: | Base 2 FFT Rotating factor Index calculation Computer language Realizing |
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