|Chronology||Current Month||Current Thread||Current Date|
|[Year List] [Month List (current year)]||[Date Index] [Thread Index]||[Thread Prev] [Thread Next]||[Date Prev] [Date Next]|
I'm ultimately going somewhere with this, but feel I need to get some
things clear in my head first. While it may not be the ideal starting
place, I want to begin with this article:
You will have to read/skim the article for context. I'm not sure
whether some of my confusion is from being dense, or just reading an
article that is not well-written/organized.
In particular, I am
interested in this quote from the article:
The DFT and the DTFT can be viewed as the logical result of applying
the standard continuous Fourier transform to discrete data. From that
perspective, we have the satisfying result that it's not the
transform that varies, it's just the form of the input:
If it is discrete, the Fourier transform becomes a DTFT.
If it is periodic, the Fourier transform becomes a Fourier series.
If it is both, the Fourier transform becomes a DFT.
I'm not getting the *significance* of the difference between the DTFT
and the DFT.
I have been applying the DFT to sampled data (specifically a
single-pulse, hence non-periodic, waveform)