Construction of positive time-frequency distributions

Authors:
P.J. Loughlin;J.W. Pitton;L.E. Atlas
Affiliations:
Dept. of Electr. Eng., Pittsburgh Univ., PA;-;-
Venue:
IEEE Transactions on Signal Processing
Year:
1994

Citing 0
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Abstract

A general method for constructing nonnegative definite, joint time-frequency distributions (TFDs) satisfying the marginals of time |s(t)|2 and frequency |S(f)|2 is presented. As nonnegative-definite distributions with the correct marginals, these TFDs are members of the Cohen-Posch class. Several examples illustrating properties of these TFDs are presented for both synthetic and real signals