In Reply to: What's the FT of the input minus the output? posted by dave789 on March 13, 2012 at 06:26:21:
Not sure what you're getting at......... The FT of a single unfiltered short-duration square "pulse" in the time domain is a stretched-out "sinc function" in the frequency domain....... But in this application, not particularly useful.The output of a single pulse is typically the pulse convolved with a windowed "sinc function" over the time domain......... (This has nothing to do with the "sinc function" mentioned above.) The FT of that is the frequency response of the DAC, which is brickwall under this circumstance.
Edits: 03/14/12
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- RE: What's the FT of the input minus the output? - Todd Krieger 00:41:10 03/14/12 (0)