Moments and maximum entropy densities in time frequency

Patrick J. Loughlin

doi:10.1117/12.325672

Abstract

The question of what the joint and conditional time-frequency moments are in terms of the signal and spectral amplitudes and phases is considered. From these moments, a time- frequency density can be constructed using the method of maximum entropy. This technique is used to assess the plausibility of expressions recently derived for low-order conditional and joint moments.ALso investigate is whether or not there is a lower bound on the local time- bandwidth product of a time-frequency density, as there is for the global case.

Citation Download Citation

Patrick J. Loughlin, "Moments and maximum entropy densities in time frequency", Proc. SPIE 3461, Advanced Signal Processing Algorithms, Architectures, and Implementations VIII, (2 October 1998); doi: 10.1117/12.325672; https://doi.org/10.1117/12.325672

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