Wigner ville representation of voiced speech signal Quasi-Harmonic Model Vs. Sinusoidal Model

Our purpose through this article is to study the Wigner Ville transform from a theoretical point of view, as it's an interesting tool to represent the speech signal. This article aims at giving a mathematical formulation of the Wigner Ville transform of a voiced speech signal using two different models: the sinusoidal model and the quasi harmonic model, both speech models are considered in the stationary case. The purpose of this work is to separate the self-terms from the cross-terms expressions. We will then compare the models used to represent the speech.