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

B Boashash,B Ristich

doi:10.1109/tftsa.1992.274240

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

B Boashash, B Ristich

https://doi.org/10.1109/tftsa.1992.274240

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Publication Date: Oct 4, 1992

Citations: 10

Affiliation: Queensland University of Technology

#Polynomial Wigner-Ville Distributions #Time-varying Higher-order Spectra + Show 8 more

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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. >

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