我自己编写的VB的FFT程序，算法中改进了网上常用算法的一些Bug，并且进行了优化，已经移植到DSP中检验过算法的速度与正确性，测试数据显示效果非常好。-myself prepared by the VB FFT procedure, the algorithm used the Internet to improve the algorithm Bug, and the optimization, which has been ported to the DSP algorithm tests