|From:||Hallgrímur Th . Björnsson|
|Subject:||[Tftb-help] achieving the power spectrum by integration of the WVD|
|Date:||Mon, 30 Jul 2007 14:22:55 +0200|
I‘m trying to achieve the power spectrum by integrating the TFR obtained from using the WVD of the toolbox. In my understanding, I should approximately arrive at a similar conclusion as using the fft.
The problem is that, when plotting the resulting value from the integration, there seems to have been a frequency shift by 2 * f. So, if I have a sinusoid of frequency 50Hz, the spectrum by integrating the WVD shows a 100Hz component. I have tried to use the CWD also, and the same problem is also in that case.
Here is my Matlab code:
Can anyone help?
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