|
From: | Eric Chassande-Mottin |
Subject: | Re: [Tftb-help] TFRSCALO Parameters & Output Help Needed |
Date: | Tue, 14 Oct 2008 15:27:30 +0200 (CEST) |
User-agent: | Alpine 1.10 (DEB 962 2008-03-14) |
Thanks! So the second question in a different way, if we signal going into tfrscalo is 1200 values, each representing the amplitude of the signal at 1 milisecond intervals, what are the units of the values in the output matrix that we're getting out of tfrscalo?
the same unit than its spectrum: if U is the unit of signal x(.) then tfr = | int x(s) \psi_{t,a} (s) ds } |^2 is of unit U^2 s^2 U s note: your choice of 1 for wavenumber is probably too small. with this choice, the wavelet psi does not oscillate at the frequencies where you are looking at. your wavelets don't look like the ones in the figure of http://gdr-isis.org/tftb/tutorial/node27.html pick a wavenumber > 8 such that wavenumber * frequency >~ 1 e.
[Prev in Thread] | Current Thread | [Next in Thread] |