A phase-space Gaussian beam summation representation of rough surface scattering

Goren Gordon, Ehud Heyman, Reuven Mazar

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

A Gaussian beam (GB) summation representation for rough surface scattering is introduced. In this scheme, the coherent and incoherent scattered fields are described by a phase-space summation of GBs that emanate from the rough surface at discrete set of points and directions. It thus involves stochastic GB2GB scattering matrices for the coherent and incoherent fields, and deterministic GB propagators. It benefits from the simplicity and accuracy of the latter, and can be used in applications involving propagation in complex scenarios comprising inhomogeneous media with rough surface boundaries. The GB2GB matrices are calculated from the statistical moments of the scattering amplitude, which are given either analytically or empirically. An analytical and numerical example for weakly rough surface is presented and discussed. Applications to the more complicated propagation scenario of doubly rough surface waveguide with multiple reflection phenomena will be presented in a follow-up publication.

Original languageEnglish
Pages (from-to)1911-1921
Number of pages11
JournalJournal of the Acoustical Society of America
Volume117
Issue number4 I
DOIs
StatePublished - 1 Apr 2005

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics

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