Abstmct-The Wigner-Ville spectrum has been recently introduced as the unique generalized spectrum for time-varying spectral analysis. Its properties are revised with emphasis on its central role in the analysis of second-order properties of nonstationary random signals. We propose here a general class of spectral estimators of the Wigner-Ville spectrum: this class is based on arbitrarily weight...

Le poeme connu Liber Maiorichinus est sans doute l’une des meilleures sources pour comprendre le role tenu par les Pisans durant xie et xiie s. l’importance politique, militaire economique de la ville, dont cette œuvre decrit moment culminant, l’expedition contre iles Baleares dans annees 1113-1115. Les anciens rivaux ville toscane, comme Amalfi, ne parvenaient alors plus a freiner son expansio...

Compte rendu de Doyon-Gosselin, Benoit. Moncton mentor : géocritique d’une ville (2022)

The information conveyed by the discrete Wigner-Ville representations of real, complex or analytic signals is highly redundant, each time-frequency location being related to others via non-obvious relationships. In this paper, we demonstrate that there also exists a large amount of linear relationships between time-frequency sample!;. This implies that a whole discrete Wigner-Ville representati...

BACKGROUND In this paper, we developed a novel algorithm to detect the valvular split between the aortic and pulmonary components in the second heart sound which is a valuable medical information. METHODS The algorithm is based on the Reassigned smoothed pseudo Wigner-Ville distribution which is a modified time-frequency distribution of the Wigner-Ville distribution. A preprocessing amplitude...