On positivity of time-frequency distributions

This correspondence addresses the problem of how to regard the fundamental impossibility with time-frequency energy distributions of Cohen's class always to be nonnegative and, at the same time, to have correct marginal distributions. It is shown that the Wigner distribution is the only member...

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Veröffentlicht in:	IEEE transactions on acoustics, speech, and signal processing speech, and signal processing, 1985-08, Vol.33 (4), p.1029-1032
Hauptverfasser:	Janssen, A., Claasen, T.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Delay effects Delay estimation Exact sciences and technology Information, signal and communications theory Propagation delay Signal analysis Signal design Signal generators Signal processing Speech processing Telecommunications and information theory Time frequency analysis Time varying systems
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