WignerDist -- Alias-Free Wigner-Ville Distribution
afwig = WignerDist(sig)
1-d signal
complex-valued matrix representing the alias-free Wigner-Ville distribution of zero-extended signal with rows corresponding to frequencies and columns corresponding to times.
Image Plot of the alias-free Wigner-Ville distribution
Mallat's book, sections 4.5.1 and 4.5.4