Uncertainty principles for coupled fractional Wigner-Ville distribution

R Soc Open Sci. 2024 May 1;11(5):231579. doi: 10.1098/rsos.231579. eCollection 2024 May.

Abstract

The coupled fractional Wigner-Ville distribution is a more general version of the fractional Wigner-Ville distribution. Main properties including boundedness, Moyal's formula and inversion formula are studied in detail for the transformation. Additionally, the relation of the coupled fractional Wigner-Ville distribution with the two-dimensional Fourier transform is studied. We also present the relationship between the coupled fractional Wigner-Ville distribution with the two-dimensional Wigner-Ville distribution. We show how the properties and relations allow us to derive several versions of the uncertainty inequalities related to the coupled fractional Wigner-Ville distribution.

Keywords: coupled fractional Fourier transform; fractional Fourier transform; uncertainty principle.