Propagation of sound in a fast bottom underlying a wedge-shaped medium
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Authors
Bradshaw, Norine A.
Subjects
Acoustics
Sound propagation
Continental shelf
Method of images
Sound propagation
Continental shelf
Method of images
Advisors
Coppens, Alan B.
Date of Issue
1980-09
Date
September 1980
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
The pressure and phase distribution of sound in a fast fluid medium underlying a tapered fluid medium was modeled using a Green's function approach. The model predicted well defined beams in the bottom, with apparent interference effects strongly evident for cases at a distance from the wedge interface. The effects of attenuation on the patterns were studied. A simple expression for determining the beam depression angle as a function the wedge angle, the sound speed ratio and the density ration was derived. Comparisons with laboratory measurements were made.
Type
Thesis
Description
Series/Report No
Department
Department of Physics and Chemistry
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.