High-Frequency Underwater Acoustic Propagation in a Port Modeled as a Three-Dimensional Duct Closed at One End Using the Method of Images
Joint Authors
Staska, Matthew D.
Beaujean, Pierre-Philippe J.
Source
Advances in Acoustics and Vibration
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-06-03
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
A computer-efficient model for underwater acoustic propagation in a shallow, three-dimensional rectangular duct closed at one end has been developed using the method of images.
The duct simulates a turning basin located in a port, surrounded with concrete walls, and filled with sea water.
The channel bottom is composed of silt.
The modeled impulse response is compared with the impulse response measured between 15 kHz and 33 kHz.
Despite small sensor-position inaccuracies and an approximated duct geometry, the impulse response can be modeled with a relative echo magnitude error of 1.62 dB at worst and a relative echo location error varying between 0% and 4% when averaged across multiple measurements and sensor locations.
This is a sufficient level of accuracy for the simulation of an acoustic communication system operating in the same frequency band and in shallow waters, as time fluctuations in echo magnitude commonly reach 10 dB in this type of environment.
American Psychological Association (APA)
Beaujean, Pierre-Philippe J.& Staska, Matthew D.. 2012. High-Frequency Underwater Acoustic Propagation in a Port Modeled as a Three-Dimensional Duct Closed at One End Using the Method of Images. Advances in Acoustics and Vibration،Vol. 2012, no. 2012, pp.1-15.
https://search.emarefa.net/detail/BIM-508963
Modern Language Association (MLA)
Beaujean, Pierre-Philippe J.& Staska, Matthew D.. High-Frequency Underwater Acoustic Propagation in a Port Modeled as a Three-Dimensional Duct Closed at One End Using the Method of Images. Advances in Acoustics and Vibration No. 2012 (2012), pp.1-15.
https://search.emarefa.net/detail/BIM-508963
American Medical Association (AMA)
Beaujean, Pierre-Philippe J.& Staska, Matthew D.. High-Frequency Underwater Acoustic Propagation in a Port Modeled as a Three-Dimensional Duct Closed at One End Using the Method of Images. Advances in Acoustics and Vibration. 2012. Vol. 2012, no. 2012, pp.1-15.
https://search.emarefa.net/detail/BIM-508963
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-508963