Accurate detection of spread-spectrum modulated signals in reverberant underwater environments

Autores
Aparicio, Joaquin; Jimenez, Ana; Alvarez, Fernando J.; Ureña, Jesús; de Marziani, Carlos Manuel; de Diego, Daniel; Cruz, Nuno; Campos, Helder
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In those positioning systems based on the detection of acoustic signals, an accurate detection of the arrival times is crucial for a correct estimation of the distance between nodes, and therefore, for the precise estimation of the node that wants to be located. In order to obtain this arrival time more accurately, acoustic signals can be coded using pseudorandom noise, but these coded signals are still affected by underwater channel phenomena. In this work, the detection of spread-spectrum modulated signals is analyzed in underwater environments that are highly affected by multipath and reverberation. A spread-spectrum signal, which consist of a modulated Kasami code, has been emitted through two different pools, reaching a receiver where it has been captured after following several line-of-sight and nonline-of-sight paths. Then, a correlation process has been performed offline to provide information about the arrival times (times-of-flight) that form the multipath structure. These times-of-flight are compared with those provided by an underwater acoustic propagation model, in order to test the performance of this model and its capacity to predict the outcome of signal detection in underwater environments with a strong multipath and reverberation component. That way, the validated propagation model could be later used in future studies to predict the detection of spread-spectrum signals and the performance of systems that use them in these adverse environments.
Fil: Aparicio, Joaquin. Universidad de Alcala; España
Fil: Jimenez, Ana. Universidad de Alcala; España
Fil: Alvarez, Fernando J.. Universidad de Extremadura; España
Fil: Ureña, Jesús. Universidad de Alcala; España
Fil: de Marziani, Carlos Manuel. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: de Diego, Daniel. Universidad de Alcala; España
Fil: Cruz, Nuno. Universidad de Porto; Portugal
Fil: Campos, Helder. Universidad de Porto; Portugal
Materia
Multipath Environments
Underwater Acoustic Propagation Model
Spread-Spectrum Signals
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/5591
Acceder
id CONICETDig_902a6c166769cba63fd17b75cd317ab0
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Accurate detection of spread-spectrum modulated signals in reverberant underwater environmentsAparicio, JoaquinJimenez, AnaAlvarez, Fernando J.Ureña, Jesúsde Marziani, Carlos Manuelde Diego, DanielCruz, NunoCampos, HelderMultipath EnvironmentsUnderwater Acoustic Propagation ModelSpread-Spectrum Signalshttps://purl.org/becyt/ford/2.2https://purl.org/becyt/ford/2In those positioning systems based on the detection of acoustic signals, an accurate detection of the arrival times is crucial for a correct estimation of the distance between nodes, and therefore, for the precise estimation of the node that wants to be located. In order to obtain this arrival time more accurately, acoustic signals can be coded using pseudorandom noise, but these coded signals are still affected by underwater channel phenomena. In this work, the detection of spread-spectrum modulated signals is analyzed in underwater environments that are highly affected by multipath and reverberation. A spread-spectrum signal, which consist of a modulated Kasami code, has been emitted through two different pools, reaching a receiver where it has been captured after following several line-of-sight and nonline-of-sight paths. Then, a correlation process has been performed offline to provide information about the arrival times (times-of-flight) that form the multipath structure. These times-of-flight are compared with those provided by an underwater acoustic propagation model, in order to test the performance of this model and its capacity to predict the outcome of signal detection in underwater environments with a strong multipath and reverberation component. That way, the validated propagation model could be later used in future studies to predict the detection of spread-spectrum signals and the performance of systems that use them in these adverse environments.Fil: Aparicio, Joaquin. Universidad de Alcala; EspañaFil: Jimenez, Ana. Universidad de Alcala; EspañaFil: Alvarez, Fernando J.. Universidad de Extremadura; EspañaFil: Ureña, Jesús. Universidad de Alcala; EspañaFil: de Marziani, Carlos Manuel. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaFil: de Diego, Daniel. Universidad de Alcala; EspañaFil: Cruz, Nuno. Universidad de Porto; PortugalFil: Campos, Helder. Universidad de Porto; PortugalElsevier2015-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/5591Aparicio, Joaquin; Jimenez, Ana; Alvarez, Fernando J.; Ureña, Jesús; de Marziani, Carlos Manuel; et al.; Accurate detection of spread-spectrum modulated signals in reverberant underwater environments; Elsevier; Applied Acoustics; 88; 2-2015; 57-650003-682Xenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0003682X14002096info:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apacoust.2014.08.002info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-17T11:38:03Zoai:ri.conicet.gov.ar:11336/5591instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-17 11:38:04.052CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Accurate detection of spread-spectrum modulated signals in reverberant underwater environments
title Accurate detection of spread-spectrum modulated signals in reverberant underwater environments
spellingShingle Accurate detection of spread-spectrum modulated signals in reverberant underwater environments
Aparicio, Joaquin
Multipath Environments
Underwater Acoustic Propagation Model
Spread-Spectrum Signals
title_short Accurate detection of spread-spectrum modulated signals in reverberant underwater environments
title_full Accurate detection of spread-spectrum modulated signals in reverberant underwater environments
title_fullStr Accurate detection of spread-spectrum modulated signals in reverberant underwater environments
title_full_unstemmed Accurate detection of spread-spectrum modulated signals in reverberant underwater environments
title_sort Accurate detection of spread-spectrum modulated signals in reverberant underwater environments
dc.creator.none.fl_str_mv Aparicio, Joaquin
Jimenez, Ana
Alvarez, Fernando J.
Ureña, Jesús
de Marziani, Carlos Manuel
de Diego, Daniel
Cruz, Nuno
Campos, Helder
author Aparicio, Joaquin
author_facet Aparicio, Joaquin
Jimenez, Ana
Alvarez, Fernando J.
Ureña, Jesús
de Marziani, Carlos Manuel
de Diego, Daniel
Cruz, Nuno
Campos, Helder
author_role author
author2 Jimenez, Ana
Alvarez, Fernando J.
Ureña, Jesús
de Marziani, Carlos Manuel
de Diego, Daniel
Cruz, Nuno
Campos, Helder
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Multipath Environments
Underwater Acoustic Propagation Model
Spread-Spectrum Signals
topic Multipath Environments
Underwater Acoustic Propagation Model
Spread-Spectrum Signals
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.2
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv In those positioning systems based on the detection of acoustic signals, an accurate detection of the arrival times is crucial for a correct estimation of the distance between nodes, and therefore, for the precise estimation of the node that wants to be located. In order to obtain this arrival time more accurately, acoustic signals can be coded using pseudorandom noise, but these coded signals are still affected by underwater channel phenomena. In this work, the detection of spread-spectrum modulated signals is analyzed in underwater environments that are highly affected by multipath and reverberation. A spread-spectrum signal, which consist of a modulated Kasami code, has been emitted through two different pools, reaching a receiver where it has been captured after following several line-of-sight and nonline-of-sight paths. Then, a correlation process has been performed offline to provide information about the arrival times (times-of-flight) that form the multipath structure. These times-of-flight are compared with those provided by an underwater acoustic propagation model, in order to test the performance of this model and its capacity to predict the outcome of signal detection in underwater environments with a strong multipath and reverberation component. That way, the validated propagation model could be later used in future studies to predict the detection of spread-spectrum signals and the performance of systems that use them in these adverse environments.
Fil: Aparicio, Joaquin. Universidad de Alcala; España
Fil: Jimenez, Ana. Universidad de Alcala; España
Fil: Alvarez, Fernando J.. Universidad de Extremadura; España
Fil: Ureña, Jesús. Universidad de Alcala; España
Fil: de Marziani, Carlos Manuel. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: de Diego, Daniel. Universidad de Alcala; España
Fil: Cruz, Nuno. Universidad de Porto; Portugal
Fil: Campos, Helder. Universidad de Porto; Portugal
description In those positioning systems based on the detection of acoustic signals, an accurate detection of the arrival times is crucial for a correct estimation of the distance between nodes, and therefore, for the precise estimation of the node that wants to be located. In order to obtain this arrival time more accurately, acoustic signals can be coded using pseudorandom noise, but these coded signals are still affected by underwater channel phenomena. In this work, the detection of spread-spectrum modulated signals is analyzed in underwater environments that are highly affected by multipath and reverberation. A spread-spectrum signal, which consist of a modulated Kasami code, has been emitted through two different pools, reaching a receiver where it has been captured after following several line-of-sight and nonline-of-sight paths. Then, a correlation process has been performed offline to provide information about the arrival times (times-of-flight) that form the multipath structure. These times-of-flight are compared with those provided by an underwater acoustic propagation model, in order to test the performance of this model and its capacity to predict the outcome of signal detection in underwater environments with a strong multipath and reverberation component. That way, the validated propagation model could be later used in future studies to predict the detection of spread-spectrum signals and the performance of systems that use them in these adverse environments.
publishDate 2015
dc.date.none.fl_str_mv 2015-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/5591
Aparicio, Joaquin; Jimenez, Ana; Alvarez, Fernando J.; Ureña, Jesús; de Marziani, Carlos Manuel; et al.; Accurate detection of spread-spectrum modulated signals in reverberant underwater environments; Elsevier; Applied Acoustics; 88; 2-2015; 57-65
0003-682X
url http://hdl.handle.net/11336/5591
identifier_str_mv Aparicio, Joaquin; Jimenez, Ana; Alvarez, Fernando J.; Ureña, Jesús; de Marziani, Carlos Manuel; et al.; Accurate detection of spread-spectrum modulated signals in reverberant underwater environments; Elsevier; Applied Acoustics; 88; 2-2015; 57-65
0003-682X
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0003682X14002096
info:eu-repo/semantics/altIdentifier/doi/
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apacoust.2014.08.002
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1843606738240012288
score 13.001348

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