Iterative range estimation in a sloping-bottom shallow-water waveguide using the generalized array invariant
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.1/13077 |
Resumo: | The array invariant theory was generalized by incorporating the waveguide invariant beta, referred to as the generalized array invariant. In this paper, the generalized array invariant is extended to mildly range-dependent environments with a sloping bottom where the waveguide invariant is variable in range. Assuming knowledge of the bottom slope, the array invariant can be applied iteratively to estimate the source range starting with beta=1 (i.e., range-independent), which converges toward the correct source range by updating b at the previously estimated range. The iterative array invariant approach is demonstrated using a short-aperture vertical array (2.8-m) in a sloping-bottom shallow-water waveguide from the Random Array of Drifting Acoustic Receivers 2007 experiment, where a high-frequency source (2-3.5 kHz) close to the surface (6-m) was towed between 0.5 and 5 km in range with the water depth varying from 80 to 50 m. (C) 2017 Acoustical Society of America. |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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7160 |
spelling |
Iterative range estimation in a sloping-bottom shallow-water waveguide using the generalized array invariantThe array invariant theory was generalized by incorporating the waveguide invariant beta, referred to as the generalized array invariant. In this paper, the generalized array invariant is extended to mildly range-dependent environments with a sloping bottom where the waveguide invariant is variable in range. Assuming knowledge of the bottom slope, the array invariant can be applied iteratively to estimate the source range starting with beta=1 (i.e., range-independent), which converges toward the correct source range by updating b at the previously estimated range. The iterative array invariant approach is demonstrated using a short-aperture vertical array (2.8-m) in a sloping-bottom shallow-water waveguide from the Random Array of Drifting Acoustic Receivers 2007 experiment, where a high-frequency source (2-3.5 kHz) close to the surface (6-m) was towed between 0.5 and 5 km in range with the water depth varying from 80 to 50 m. (C) 2017 Acoustical Society of America.Office of Naval Research [N00014-13-1-0510]Phase 2 STTR, titled Acoustic Communications Modem Using MIMO Technology [N05-T022]Acoustical Society of AmericaSapientiaCho, ChomgunSong, H. C.Hursky, P.Jesus, Sergio2019-11-20T15:07:31Z2017-072017-07-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/13077eng0001-496610.1121/1.4990670info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-24T10:25:07Zoai:sapientia.ualg.pt:10400.1/13077Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:04:17.402944Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Iterative range estimation in a sloping-bottom shallow-water waveguide using the generalized array invariant |
title |
Iterative range estimation in a sloping-bottom shallow-water waveguide using the generalized array invariant |
spellingShingle |
Iterative range estimation in a sloping-bottom shallow-water waveguide using the generalized array invariant Cho, Chomgun |
title_short |
Iterative range estimation in a sloping-bottom shallow-water waveguide using the generalized array invariant |
title_full |
Iterative range estimation in a sloping-bottom shallow-water waveguide using the generalized array invariant |
title_fullStr |
Iterative range estimation in a sloping-bottom shallow-water waveguide using the generalized array invariant |
title_full_unstemmed |
Iterative range estimation in a sloping-bottom shallow-water waveguide using the generalized array invariant |
title_sort |
Iterative range estimation in a sloping-bottom shallow-water waveguide using the generalized array invariant |
author |
Cho, Chomgun |
author_facet |
Cho, Chomgun Song, H. C. Hursky, P. Jesus, Sergio |
author_role |
author |
author2 |
Song, H. C. Hursky, P. Jesus, Sergio |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Sapientia |
dc.contributor.author.fl_str_mv |
Cho, Chomgun Song, H. C. Hursky, P. Jesus, Sergio |
description |
The array invariant theory was generalized by incorporating the waveguide invariant beta, referred to as the generalized array invariant. In this paper, the generalized array invariant is extended to mildly range-dependent environments with a sloping bottom where the waveguide invariant is variable in range. Assuming knowledge of the bottom slope, the array invariant can be applied iteratively to estimate the source range starting with beta=1 (i.e., range-independent), which converges toward the correct source range by updating b at the previously estimated range. The iterative array invariant approach is demonstrated using a short-aperture vertical array (2.8-m) in a sloping-bottom shallow-water waveguide from the Random Array of Drifting Acoustic Receivers 2007 experiment, where a high-frequency source (2-3.5 kHz) close to the surface (6-m) was towed between 0.5 and 5 km in range with the water depth varying from 80 to 50 m. (C) 2017 Acoustical Society of America. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-07 2017-07-01T00:00:00Z 2019-11-20T15:07:31Z |
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://hdl.handle.net/10400.1/13077 |
url |
http://hdl.handle.net/10400.1/13077 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0001-4966 10.1121/1.4990670 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Acoustical Society of America |
publisher.none.fl_str_mv |
Acoustical Society of America |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799133279512690688 |