[SI-LIST] Re: Frequency spectrum of SONET data
- From: Al Davis <aldavis@xxxxxxxx>
- To: si_list <si-list@xxxxxxxxxxxxx>
- Date: Tue, 26 Mar 2002 19:37:49 -0700
On Tuesday 26 March 2002 15:57, Paglia, Frank M wrote:
> If you have microsoft excel you can use it to do fft on your data =
> signal.
He said "free".
Here are some suggestions:
"octave" (http://www.octave.org or
http://www.gnu.org/software/octave) does all kinds of neat
mathematical processing, including FFT.
Most circuit simulators have some kind of Fourier transform. Some,
line "gnucap" (http://www.gnu.org/software/gnucap) give you source.
Take the file "m_fft.cc" and wrap it however you want.
The GNU Scientific Library (http://sources.redhat.com/gsl/ or
http://www.gnu.org/software/gsl/) has linkable code for lots of
numeric algorithms, including FFT.
If you really want a spreadsheet, try "gnumeric"
(http://www.gnu.org/software/gnumeric/gnumeric.html). Like most
spreadsheets, it does Fourier analysis and lots of other stuff. You
can write extensions in Python.
If this isn't enough, look in http://ibiblio.org/pub/Linux/apps/ ,
particularly in the circuits and math directories off of there.
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