variant Time-Frequency Distributions ased on Conjugate Operators

Franz Hlawatsch, Helmut Bölcskei

Published Jan 1, 1996• 0 citations

Abstract

We propose classes of quadratic time-frequency distributions that retain the inner structure of Cohen's class. Each of these classes is based on a pair of conjugate unitary operators producing time-frequency displacements. The classes satisfy covariance and marginal properties corresponding to these operators. For each class, we define a central member generalizing the Wigner distribution and the Q-distribution, and we specify a transformation by which the class can be derived from Cohen's class.

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