Abstract
Statistical propagation characteristics in a waveguide filled with a randomly fluctuating medium can be modeled in terms of rays and guided modes. In this work, a plane-parallel waveguide filled with a random medium having a characteristic fluctuations scale much smaller than the transverse waveguide dimension is considered. The field approaching the observer in such a waveguide can be approximated as a sum of contributions of a direct ray and the rays reflected by the waveguide walls. The corresponding intensity distribution is presented as a sum of two parts: coherent and incoherent. Using the Poisson summation formula, these portions can be transformed into the sums of guided modes. Numerical examples are presented.
Original language | English |
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Pages (from-to) | 2495-2504 |
Number of pages | 10 |
Journal | Journal of the Acoustical Society of America |
Volume | 95 |
Issue number | 5 |
DOIs | |
State | Published - 1 Jan 1994 |
ASJC Scopus subject areas
- Arts and Humanities (miscellaneous)
- Acoustics and Ultrasonics