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a point I can't understand about the sinc expression

C

circuit975

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I salute the entire community.

i find this way when finding the H(f) equivalent of this sinc expression, is it true? because I see it in the form of f/16 in some sources. which one is correct?
 
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If posted your other sources, someone could analyze the difference, context discrepancy. The left side in the equation shows the signal has been sampled at 8 Hz is equal to the right side Fourier transform using the DIRAC comb or Shaw function using the same Dirac delta spacing.

1749162724228.jpeg
 
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