【文件属性】：
文件名称：基于FFT的算法
文件大小：628KB
文件格式：PDF
更新时间：2022-03-03 07:08:36
FFT
The Fast Fourier Transform (FFT) is a mathematical
technique for transforming a time-domain digital signal into
a frequency-domain representation of the relative amplitude
of different frequency regions in the signal. The FFT is a
method for doing this process very efficiently. It may be
computed using a relatively short excerpt from a signal.