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cxrFFT
- 实现一维快速傅里叶变换，采用蝶形算法进行频域变换； 二维快速傅立叶变换在此基础上进行，调用两次一维快速傅里叶变换即可。-achieve a fast Fourier transform, using butterfly frequency domain algorithm transformation; two-dimensional fast Fourier transform on this basis, call a two-dimensional fast Fourier trans
DCTofJPEG
- 用verilog代码写的JPEG压缩核心模块DCT变换之蝶形单元算法-verilog code written using JPEG compression core module DCT's butterfly modules algorithm
DCT2-lele
- 利用蝶形算法类似于FFT，利用先行再列实现二维DCT。速度很快。包含反DCT的代码。-similar to the use of butterfly FFT algorithm, the first re-use of 2D DCT out. Very fast. Contain anti - DCT code.
FFT_1D
- 快速傅立叶变换的matlab实现，一维情况下利用蝶形算法实现-Fast Fourier Transform Implementation of Matlab, a dimension of the use of butterfly Algorithm
DFT
- 利用蝶形算法，实现快速傅立叶变换及其逆变换-The use of butterfly algorithm, fast Fourier transform and its inverse transform
[kimi]DFT
- 使用蝶形算法实现了DFT（FFT）,并封装成类。-The code for DFT(FFT) by using butterfly model.
FirstQuickFourier
- 实现快速傳里叶变换，采用频率分解法进行蝶形运算-Fast Fourier transform mass sampling frequency decomposition method butterfly