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# Discrete-time, discrete-frequency time-frequency representations

@inproceedings{Richman1995DiscretetimeDT, title={Discrete-time, discrete-frequency time-frequency representations}, author={Michael S. Richman and Thomas W. Parks and Ramachandra G. Shenoy}, booktitle={ICASSP}, year={1995} }

- Published 1995 in ICASSP
DOI:10.1109/ICASSP.1995.480409

A discrete-time, discrete-frequency Wigner distribution is derived using a group-theoretic approach. It is based upon a study of the Heisenberg group generated by the integers mod N , which represents the group of discrete-time and discrete-frequency shifts. The resulting Wigner distribution satis es several desired properties. An example demonstrates that it is a full-band time-frequency representation, and, as such, does not require special sampling techniques to suppress aliasing. It also… CONTINUE READING

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