A study of waveguide invariant using multiple parameters
When a surface ship of opportunity passes a single hydrophone, a distinct pattern known as the "bathtub" feature can be identified on the spectrogram of the received signal. If the ship speed and distance to the recorder are known, then useful information about the physical properties of t...
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ftunivdelaware:oai:udspace.udel.edu:19716/28174 2023-06-11T04:09:03+02:00 A study of waveguide invariant using multiple parameters Muniz, Alexander P. 2020-09-17T22:07:53Z application/pdf https://udspace.udel.edu/handle/19716/28174 en eng University of Delaware https://login.udel.idm.oclc.org/login?url=https://www.proquest.com/docview/2452120956?accountid=10457 1225198524 https://udspace.udel.edu/handle/19716/28174 Arctic environment Waveguide Invariant Bathtub feature Thesis 2020 ftunivdelaware 2023-05-01T12:55:04Z When a surface ship of opportunity passes a single hydrophone, a distinct pattern known as the "bathtub" feature can be identified on the spectrogram of the received signal. If the ship speed and distance to the recorder are known, then useful information about the physical properties of the waveguide can be extracted using the waveguide invariant parameter (beta) describing the characteristics of the ocean acoustic waveguide. For a simple waveguide, beta can be approximated as one for all frequencies and ranges and is invariant to mode pairs. ☐ This research, through the use of the normal mode model KRAKEN, and with acoustic data gathered during the Shallow Water Canada Basin Acoustic Propagation Experiment, illustrates that beta in a complex Arctic environment does in fact change with the properties of the waveguide such as water depth, sound speed profile in the water, sediment layer structure, and the seafloor physical properties. The value of waveguide invariant also changes with the frequency and mode pair selected. Badiey, Mohsen Wan, Lin M.S. University of Delaware, Department of Electrical and Computer Engineering Thesis Arctic canada basin The University of Delaware Library Institutional Repository Arctic Canada Kraken ENVELOPE(14.070,14.070,77.470,77.470) |
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Open Polar |
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The University of Delaware Library Institutional Repository |
op_collection_id |
ftunivdelaware |
language |
English |
topic |
Arctic environment Waveguide Invariant Bathtub feature |
spellingShingle |
Arctic environment Waveguide Invariant Bathtub feature Muniz, Alexander P. A study of waveguide invariant using multiple parameters |
topic_facet |
Arctic environment Waveguide Invariant Bathtub feature |
description |
When a surface ship of opportunity passes a single hydrophone, a distinct pattern known as the "bathtub" feature can be identified on the spectrogram of the received signal. If the ship speed and distance to the recorder are known, then useful information about the physical properties of the waveguide can be extracted using the waveguide invariant parameter (beta) describing the characteristics of the ocean acoustic waveguide. For a simple waveguide, beta can be approximated as one for all frequencies and ranges and is invariant to mode pairs. ☐ This research, through the use of the normal mode model KRAKEN, and with acoustic data gathered during the Shallow Water Canada Basin Acoustic Propagation Experiment, illustrates that beta in a complex Arctic environment does in fact change with the properties of the waveguide such as water depth, sound speed profile in the water, sediment layer structure, and the seafloor physical properties. The value of waveguide invariant also changes with the frequency and mode pair selected. Badiey, Mohsen Wan, Lin M.S. University of Delaware, Department of Electrical and Computer Engineering |
format |
Thesis |
author |
Muniz, Alexander P. |
author_facet |
Muniz, Alexander P. |
author_sort |
Muniz, Alexander P. |
title |
A study of waveguide invariant using multiple parameters |
title_short |
A study of waveguide invariant using multiple parameters |
title_full |
A study of waveguide invariant using multiple parameters |
title_fullStr |
A study of waveguide invariant using multiple parameters |
title_full_unstemmed |
A study of waveguide invariant using multiple parameters |
title_sort |
study of waveguide invariant using multiple parameters |
publisher |
University of Delaware |
publishDate |
2020 |
url |
https://udspace.udel.edu/handle/19716/28174 |
long_lat |
ENVELOPE(14.070,14.070,77.470,77.470) |
geographic |
Arctic Canada Kraken |
geographic_facet |
Arctic Canada Kraken |
genre |
Arctic canada basin |
genre_facet |
Arctic canada basin |
op_relation |
https://login.udel.idm.oclc.org/login?url=https://www.proquest.com/docview/2452120956?accountid=10457 1225198524 https://udspace.udel.edu/handle/19716/28174 |
_version_ |
1768382750021124096 |