marginals and energy of the scalogram to match the signal

조회 수: 1 (최근 30일)
Paramonte
Paramonte 2013년 12월 11일
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

답변 (0개)

카테고리

Help CenterFile Exchange에서 Continuous Wavelet Transforms에 대해 자세히 알아보기

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by