Accuracy of the Kirchhoff-approximation and Kirchhoff-ray-mode fish swimbladder acoustic scattering models.

The acoustic backscatter from pressure release prolate spheroids and a three-dimensional representation of a fish swimbladder (Chilean jack mackerel, Trachurus symmetricus murphyi) was calculated using four target strength models (Kirchhoff-approximation, Kirchhoff-ray-mode, finite element solution...

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Autores principales:	Gavin J Macaulay, Héctor Peña, Sascha M M Fässler, Geir Pedersen, Egil Ona
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/990bf2743c0a4b6a9921180940445cf3
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id	oai:doaj.org-article:990bf2743c0a4b6a9921180940445cf3
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spelling	oai:doaj.org-article:990bf2743c0a4b6a9921180940445cf32021-11-18T07:45:47ZAccuracy of the Kirchhoff-approximation and Kirchhoff-ray-mode fish swimbladder acoustic scattering models.1932-620310.1371/journal.pone.0064055https://doaj.org/article/990bf2743c0a4b6a9921180940445cf32013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23691146/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203The acoustic backscatter from pressure release prolate spheroids and a three-dimensional representation of a fish swimbladder (Chilean jack mackerel, Trachurus symmetricus murphyi) was calculated using four target strength models (Kirchhoff-approximation, Kirchhoff-ray-mode, finite element solution of the Helmholtz equation, and prolate-spheroid-modal-series). Smoothly varying errors were found in the Kirchhoff-approximation and Kirchhoff-ray-mode model results when compared to the other models, and provide objective criteria for constraining the use of the KA and KRM models. A generic correction technique is also proposed for the prolate spheroid estimates and tentatively tested on a jack mackerel swimbladder, resulting in improvements to the target strength estimates from the Kirchhoff-approximation and Kirchhoff-ray-mode models.Gavin J MacaulayHéctor PeñaSascha M M FässlerGeir PedersenEgil OnaPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 5, p e64055 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Gavin J Macaulay Héctor Peña Sascha M M Fässler Geir Pedersen Egil Ona Accuracy of the Kirchhoff-approximation and Kirchhoff-ray-mode fish swimbladder acoustic scattering models.
description	The acoustic backscatter from pressure release prolate spheroids and a three-dimensional representation of a fish swimbladder (Chilean jack mackerel, Trachurus symmetricus murphyi) was calculated using four target strength models (Kirchhoff-approximation, Kirchhoff-ray-mode, finite element solution of the Helmholtz equation, and prolate-spheroid-modal-series). Smoothly varying errors were found in the Kirchhoff-approximation and Kirchhoff-ray-mode model results when compared to the other models, and provide objective criteria for constraining the use of the KA and KRM models. A generic correction technique is also proposed for the prolate spheroid estimates and tentatively tested on a jack mackerel swimbladder, resulting in improvements to the target strength estimates from the Kirchhoff-approximation and Kirchhoff-ray-mode models.
format	article
author	Gavin J Macaulay Héctor Peña Sascha M M Fässler Geir Pedersen Egil Ona
author_facet	Gavin J Macaulay Héctor Peña Sascha M M Fässler Geir Pedersen Egil Ona
author_sort	Gavin J Macaulay
title	Accuracy of the Kirchhoff-approximation and Kirchhoff-ray-mode fish swimbladder acoustic scattering models.
title_short	Accuracy of the Kirchhoff-approximation and Kirchhoff-ray-mode fish swimbladder acoustic scattering models.
title_full	Accuracy of the Kirchhoff-approximation and Kirchhoff-ray-mode fish swimbladder acoustic scattering models.
title_fullStr	Accuracy of the Kirchhoff-approximation and Kirchhoff-ray-mode fish swimbladder acoustic scattering models.
title_full_unstemmed	Accuracy of the Kirchhoff-approximation and Kirchhoff-ray-mode fish swimbladder acoustic scattering models.
title_sort	accuracy of the kirchhoff-approximation and kirchhoff-ray-mode fish swimbladder acoustic scattering models.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/990bf2743c0a4b6a9921180940445cf3
work_keys_str_mv	AT gavinjmacaulay accuracyofthekirchhoffapproximationandkirchhoffraymodefishswimbladderacousticscatteringmodels AT hectorpena accuracyofthekirchhoffapproximationandkirchhoffraymodefishswimbladderacousticscatteringmodels AT saschammfassler accuracyofthekirchhoffapproximationandkirchhoffraymodefishswimbladderacousticscatteringmodels AT geirpedersen accuracyofthekirchhoffapproximationandkirchhoffraymodefishswimbladderacousticscatteringmodels AT egilona accuracyofthekirchhoffapproximationandkirchhoffraymodefishswimbladderacousticscatteringmodels
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Accuracy of the Kirchhoff-approximation and Kirchhoff-ray-mode fish swimbladder acoustic scattering models.

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