fft code in c++ is for learning purpose

数字信号处理快速傅里叶变换C语言程序代码-Digital signal processing fast Fourier transform C language code

基于采样率变换和循环卷积的GPS信号快速捕获。提出了一种适用于GPS软件接收机的C/A码和多普勒频移的快速捕获算法。该算法结合了采样变换FFT和时域卷积两种方法，提高了捕获速度和多普勒频移的精度。-Based on the sampling rate conversion and fast circular convolution of the GPS signal capture. Presents a GPS receiver software for C/A code and Dopple

FFT，傅里叶变换C代码实现，简单通俗易懂-FFT, Fourier transform C code, simple and easy to understand.