Resonance scattering in waveguides: Acoustic scatterers

Detalhes bibliográficos
Autor(a) principal: Carrion, Philip M.
Data de Publicação: 1990
Outros Autores: Brito, Marco Antonio P. de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/7853
Resumo: p. 1 - 8
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spelling Carrion, Philip M.Brito, Marco Antonio P. deCarrion, Philip M.Brito, Marco Antonio P. de2013-01-14T20:10:18Z2013-01-14T20:10:18Z19900001-4966http://www.repositorio.ufba.br/ri/handle/ri/7853v. 87, n. 3p. 1 - 8In this paper,a coustics catteringin shallowa nd deepi nhomogeneouwsa veguidesis analyzed. The full acousticw avee quationt hat describesth e scattereda nd reflectedw avef ields,a s well as all multipathingw ithin the scatterera nd the waveguidei,s employed.T he explicit finite differenceti me integrationa nd the k-w transformi n the spaced omain (pseudospectral method) were utilized. Properlyc hosenb oundaryc onditionse nabledt he authorst o model both shallowa nd deepo ceansT. he pseudospectraml ethodw as comparedw ith the explicit finite differencet echnique( seeA ppendix). The pseudospectraml ethodc an be valuablef or modelingd ifferentu nderwaterw avep henomenaI:t is characterizedb y much smaller numericald ispersionth an the conventionafl inite differencem ethod.T he resultss howt hat in shallowo cean,s trongr esonancec ouplingb etweent he underwaters catterera nd the waveguide may occur.A n important conclusiono f this paper is that in a limited aperturee xperiment when the acousticr eflectionsa re beyondt he recordinga perture (due to the finite length of the recordingc able), the measuredd ata are mainly representedb y the primary diffractiona rrivals and "diffractionr esonances.I"n this paper,a detailedd iscussionw ill be giveno n the acoustic scatteringi n an inhomogeneouws aveguide.( For the sakeo f simplicity,a n acoustics catterero f the rectangulars hapew as considered). Different complexities( elastics catterersm, ore complicateds tructureso f the index of refractioni n the water, etc.) will be compoundedin the original model and reported elsewhereSubmitted by Santiago Fabio (fabio.ssantiago@hotmail.com) on 2013-01-14T20:10:18Z No. of bitstreams: 1 ccccc.pdf: 1103295 bytes, checksum: d351392869d12c0f2e9ca779297a9f69 (MD5)Made available in DSpace on 2013-01-14T20:10:18Z (GMT). No. of bitstreams: 1 ccccc.pdf: 1103295 bytes, checksum: d351392869d12c0f2e9ca779297a9f69 (MD5) Previous issue date: 1990SalvadorJournal of the Acoustical Society of America10.1121/1.399542reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAResonance scattering in waveguides: Acoustic scatterersJournal of the Acoustical Society of Americainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleenginfo:eu-repo/semantics/openAccessORIGINALccccc.pdfccccc.pdfapplication/pdf1103295https://repositorio.ufba.br/bitstream/ri/7853/1/ccccc.pdfd351392869d12c0f2e9ca779297a9f69MD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/7853/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXTccccc.pdf.txtccccc.pdf.txtExtracted texttext/plain33010https://repositorio.ufba.br/bitstream/ri/7853/3/ccccc.pdf.txt105d1d0c1e0cba705dde13ee2dc21321MD53ri/78532022-07-05 14:03:19.685oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:19Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Resonance scattering in waveguides: Acoustic scatterers
dc.title.alternative.pt_BR.fl_str_mv Journal of the Acoustical Society of America
title Resonance scattering in waveguides: Acoustic scatterers
spellingShingle Resonance scattering in waveguides: Acoustic scatterers
Carrion, Philip M.
title_short Resonance scattering in waveguides: Acoustic scatterers
title_full Resonance scattering in waveguides: Acoustic scatterers
title_fullStr Resonance scattering in waveguides: Acoustic scatterers
title_full_unstemmed Resonance scattering in waveguides: Acoustic scatterers
title_sort Resonance scattering in waveguides: Acoustic scatterers
author Carrion, Philip M.
author_facet Carrion, Philip M.
Brito, Marco Antonio P. de
author_role author
author2 Brito, Marco Antonio P. de
author2_role author
dc.contributor.author.fl_str_mv Carrion, Philip M.
Brito, Marco Antonio P. de
Carrion, Philip M.
Brito, Marco Antonio P. de
description p. 1 - 8
publishDate 1990
dc.date.issued.fl_str_mv 1990
dc.date.accessioned.fl_str_mv 2013-01-14T20:10:18Z
dc.date.available.fl_str_mv 2013-01-14T20:10:18Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/7853
dc.identifier.issn.none.fl_str_mv 0001-4966
dc.identifier.number.pt_BR.fl_str_mv v. 87, n. 3
identifier_str_mv 0001-4966
v. 87, n. 3
url http://www.repositorio.ufba.br/ri/handle/ri/7853
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Journal of the Acoustical Society of America
publisher.none.fl_str_mv Journal of the Acoustical Society of America
dc.source.pt_BR.fl_str_mv 10.1121/1.399542
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
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instname_str Universidade Federal da Bahia (UFBA)
instacron_str UFBA
institution UFBA
reponame_str Repositório Institucional da UFBA
collection Repositório Institucional da UFBA
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