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, 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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