FFT实现信号的检测与同步，使用FFT做相关运算，大大缩短了了同步的复杂度和时间，这里是主代码，其他模块QUARTUS中自带有IP核，直接调用就是了-FFT signal detection and synchronization, do the relevant calculations using FFT, greatly reducing the complexity and time synchronization, here is the main code IP core comes

matlab simulinc file for calculating xilinx fft core using system generator

fft算法的实现，包括时域抽取和频域抽取。可以帮助学生快速了解fft算法的核心思想。-This software is a implementation of fft algorithm, which includes the time-domain and frequency-domain.Using this software, students can quickly understand the core idea of fft algorithm.