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- W1997438847 abstract "Abstract The time-frequency Wigner-Ville distribution for a pulsed plane-wave signal propagating in a continuous random medium is found, based on the previously derived modal series expression for the two-frequency coherence function. The theory can address propagation in any homogeneous isotropic random medium, but closed-form expressions are specifically derived for a general power-law medium. Two alternative formulations are presented: a modal-wavefront approach wherein each mode is asymptotically transformed to the time domain and a collective approach wherein the mode series is summed collectively and then transformed to the time domain using pole contributions. The physical interpretation of these two different representations in the time-frequency domain as either a superposition of localized wavefronts or collective excitations is established, and their applications to the calculation of local moments are considered." @default.
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- W1997438847 date "1998-04-01" @default.
- W1997438847 modified "2023-09-25" @default.
- W1997438847 title "Wigner–Ville distribution for pulse propagation in random media: pulsed plane wave" @default.
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- W1997438847 doi "https://doi.org/10.1088/0959-7174/8/2/002" @default.
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