I am getting different values of fft for the same variable as demonstrated by a simple example below...
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E=[1 2 4 6;3 6 3 9;7 5 8 9]
EF=fftshift(abs(fft(E)))
ES=fftshift(abs(fft(E(:,1))))
shouldn't ES be equal to the first row of EF...
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Risposte (1)
Paul
il 11 Mag 2024
I think you were expecting ES be equal to the first column of EF.
If desired for fftshift to work along a specific dimension of the input, then that dimension needs to be specified
E=[1 2 4 6;3 6 3 9;7 5 8 9];
EF=fftshift(abs(fft(E)),1) % specify the dimension
ES=fftshift(abs(fft(E(:,1))))
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