Displacement-covariant time-frequency energy distributions


Franz Hlawatsch and Helmut Bölcskei


Proc. of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Detroit (MI), Vol. 2, pp. 1025-1028, May 1995.

DOI: 10.1109/ICASSP.1995.480408

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We present a theory of quadratic time-frequency (TF) energy distributions that satisfy a covariance property and generalized marginal properties. The theory coincides with the characteristic function method of Cohen and Baraniuk in the special case of "conjugate operators.''


Time-frequency representations, conjugate operators, Cohen's class

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