We have a question about DFT in python. ... We would like plot our data in the frequency domain by conducting a discrete fourier transform. ... <看更多>

discrete Fourier transform (DFT)是一個能夠解析訊號的頻率成分(frequency components)的演算法， 也就是大家常說的時域訊號轉頻譜(spectrum)。 ... <看更多>

The DFT differs from the discrete-time Fourier transform (DTFT) in that its input and output sequences are both finite; it is therefore said to be the ... ... <看更多>