FS, FT, DFT, and DTFT

Post date: Jan 16, 2015 12:55:32 AM

Although FS, FT, DFT, and DTFT are available in any standard textbook on DSP, I still enjoy keeping them here. They are very similar to each other. However, the devil is in the details.

The connection between FT and DTFT can be obtained as follows:

I have also attached a MATLAB code in order to demonstrate the connections between FT and DTFT.