Re: Discrete Fourier Transform (DFT) viewer and/or file format
On Sun, Nov 12, 2017 at 07:45:13PM -0800, Dan Hitt wrote:
> I have some DFTs that i wish to inspect. (Apparently DFT is a common
> acronym, but here i mean Discrete Fourier Transform. And properly
> speaking it doesn't make sense to inspect a transform, but only to
> inspect transformed data, but i'm speaking colloquially.)
>
> DFTs are a common artifact in digital signal processing. Lots of
> Debian packages are focused on FFTs (Fast Fourier Transforms, a way of
> computing DFTs). Nevertheless i couldn't find either a standard file
> format to store one, or software specifically for viewing DFTs.
>
> Of course, lots of software can take data, then transform it, then
> display the transform that it created, but i would like something that
> can take an already created DFT in some standard format, then display
> it.
>
> TIA for any information or pointers or advice from anybody! :)
>
> dan
>
First things first: there is no special format for FT data.
Since mostly you deal with time series/sequential data any format should work.
To display that data any plotting program will do.
gnuplot,
mathplot...
If you look for a easy integration into your transformation routines, I
suggest numpy/scipy which uses mathplot.
-H
--
Henning Follmann | hfollmann@itcfollmann.com
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