在matlab中实现的快速傅里叶程序，可以有效的用于频谱分析，效果清晰-Fast Fourier program, implemented in matlab can be effectively used for spectral analysis, the effect is clear

利用C语言实现快速傅里叶变换，介绍了两种方法实现，非常好，对于信号处理很有帮助。-C language fast Fourier transform, the two methods achieved very good, very helpful for signal processing.

The FFT is based on decomposition and breaking the transform into smaller transforms and combining them to get the total transform. FFT reduces the computation time required to compute a discrete Fourier transform and improves the performance by a fa

傅里叶变换，用于数字信号处理中的波形处理，十分方便-Fourier transform for waveform processing of digital signal processing, is very convenient