Acoustic Propagation Modeling using MATLAB
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Authors
Powers, John P.
Subjects
Acoustic Propagation
Transient Waves
Transfer Function
Linear Systems Theory
Transient Waves
Transfer Function
Linear Systems Theory
Advisors
Date of Issue
1993-01
Date
1993-01
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
This report presents a computational technique for the rapid, efficient calculation of fields from transient acoustic sources in linear, isotropic media. The source velocity is separable in space and time. The method uses a spatial impulse response method based on linear systems concepts to express the output in terms of the Green's function of propagation equation and the boundary conditions. The output is expressed as the inverse spatial transform of the product of the transform of the spatial excitation and a time- varying spatial filter that represents propagation. The calculation technique has been implemented in MATLAB and sample cases are presented for the circular and square piston, as well as a Gaussian- and Bessel-weighted spatial excitation. Code for the MATLAB implementation is provided.
Type
Technical Report
Description
Series/Report No
Department
Electrical and Computer Engineering
Identifiers
NPS Report Number
NPS-EC-93-014
Sponsors
Naval Postgraduate School, Monterey, California.
Funder
Format
xii, 62 p.: ill. ; 28 cm.
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.