I think that your expression isn't true.If N is the FFT length and Fs is sampling frequency then
f = 0 : Fs / N : ( Fs - 1 ) / N;
f = 0 : Fs / N : Fs - 1 / N
davyzhu said:Hi all,
I am a Matlab newbie
How to get frequency spectrum of a vector data? (something like [3 4 2 10 ...])
I heard FFT is the time-frequency fransform. And I tried fft() function in Matlab.
But it return a complex number. Is it stand for both frequency and phase?
Any suggestions will be appreciated!
Best regards,
Davy
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