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Re: LF: An experiment

from [wolf_dl4yhf] [Permanent Link][Original]
To: [email protected]
Subject: Re: LF: An experiment
From: wolf_dl4yhf <[email protected]>
Date: Mon, 16 Jun 2014 19:01:01 +0200
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Hi Edgar,
It would be interesting to compare the spectra with the time- and frequency reassigned spectrogram. It is implemented in Spectrum Lab but needs a bit of tweeking (especially the FFT length). 
Details and a screenshot comparing the normal and reassigned spectrogram:

http://www.qsl.net/dl4yhf/speclab/ra_spectrogram.htm

The algorithm itself is described at

http://people.ece.cornell.edu/land/PROJECTS/ReassignFFT/index.html
If you like, you can send me one of your wave recordings to experiment with... 

All the best,
  Wolf .



Am 16.06.2014 04:19, schrieb edgar:

Hi,
The attached file contains the results of an experiment in recording signals of short duration. 

Comments welcomed.

Regards, Edgar
Moonah, Tasmania.
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