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Description: 一个讲解FFT原理及蝶形算法的讲义!从一个网上朋友共享得来!-A PPT that introduce the principle of FFT and butterfly algorithm ! Shared from a friend online!
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Size: 483328 |
Author: xiaoyu |
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Description: FFT算法的基本原理是把长序列的DFT逐次分解为较短序列的DFT.按照抽取方式的不同可分为DIT-FFT(按时间抽取)和DIF-FFT(按频率抽取)算法.按照蝶形运算的构成不同可分为基2、基4、基8以及任意因子(2n,n为大于1的整数),基2、基4算法较为常-The FFT algorithm s basic principle is decomposes gradually long sequence DFT into short sequence DFT. different may divide into according to the extraction way DIT-FFT (according to time extraction) and DIF-FFT (according to frequency extraction) the algorithm. Different may divide into the base 2, base 4, bases according to the butterfly-shaped operation s constitution 8 as well as the random factor (2n, n is bigger than 1 integer), the base 2, base 4 algorithms are more common.
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Size: 419840 |
Author: 卡其米奇 |
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Description: fft算法的例子代码以及fft相关知识的ppt,其中fft算法是用C语言实现的,且做了很详细的注释。-
fft algorithms fft ppt example code and related knowledge, where fft algorithm is implemented in C, and made a very detailed notes.
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Size: 559104 |
Author: 张小小 |
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Description: FFT快速傅里叶变换资料,PPT、原理文档、源码-FFT,FastForderTrans.yuanmaziliao he yuanliwendang
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Size: 6328320 |
Author: fangyunfeng |
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