Polynomial Wigner-Ville distributions and time-varying higher-order spectra

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Polynomial Wigner-Ville distributions and time-varying higher-order spectra

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Title: Polynomial Wigner-Ville distributions and time-varying higher-order spectra
Author: Boashash, Boualem; Ristich, Branko
Abstract: The concept of reduced time-varying higher-order spectra based on polynomial Wigner-Ville distributions (PWVDs) is presented. Two members of a class of PWVDs are illustrated, each dedicated to a specific problem that cannot be optimally solved using Cohen's class of bilinear (second order) time-frequency distributions. Polynomial WVDs are shown to preserve or generalize many properties of the WVD. The case of multicomponent signals is addressed, and higher-order time-frequency distributions are defined.
Description: This paper defines 2 methods for time-frequency analysis for an application that require an order higher than quadratic TFDs. A software package that calculates IF estimates and TFDs can be downloaded from the web site: www.time-frequency.net
URI: http://hdl.handle.net/10576/10689
Date: 1992-10

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