- #1

Luk

When performing a Fourier transform on a time discrete signal, we have to apply the DTFT. The DTFT sums upp all the samples multiplied by a complex exponential function. In this complex exponential function we multiply an angular frequency with the index k. Well, I'm not sure what this is all suppossed to tell me. But I especially can't get my head around the angular frequency, which is somehow normalized on the sampling rate. What does this mean?