marginals and energy of the scalogram to match the signal
1 view (last 30 days)
Show older comments
Hi there: I have been looking for some matlab code to compute the time and frequency marginals in the wavelet scalogram.
Moreover I was trying to to verify the so-called total energy condition of the scalogram, basically the energy of the scalogram should match the energy of the signal.
I have done a double integral of the scalogram and the result doesn´t match the energy of the signal, so I should be doing something wrong since the result should be wavelet dependent, and we should take that in account when calculating the energy of the signal.
integral(integral(P(f,t))= sum(norm(s(t)).^2)
P(f,t)= scalogram and s(t) signal
Time marginal: integral(P(f,t)df=|s(t)|.^2 Frequency marginal integral(P(f,t)dt=|S(w)|.^2 Any ideas? Thanks
0 Comments
Answers (0)
See Also
Categories
Find more on Continuous Wavelet Transforms in Help Center and File Exchange
Products
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!