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 of the speed and accuracy of test data show very good results.