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Acoustic channel frequency response estimation using sources of opportunity

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dc.contributor.authorSantos, Ana Bela
dc.contributor.authorFelisberto, P.
dc.contributor.authorJesus, S. M.
dc.date.accessioned2017-04-07T15:57:21Z
dc.date.available2017-04-07T15:57:21Z
dc.date.issued2016
dc.description.abstractThis work addresses the usage of ship radiated noise to estimate the ocean acoustic water propagation channel response between two vertical line arrays. We derive an expression for the frequency response channel estimate using a normal mode development based on cross-correlation methods, in a similar way as Roux et al. [1]. Its applicability and limitations in simulated and real conditions is discussed. Simulations are conducted using the normal mode model KRAKEN, based on the experimental setup and environmental parameters gathered during the RADAR' 07 sea trial, off the west coast of Portugal, in July of 2007. In this sea trial two drifting vertical line arrays with 16 and 8 hydrophones were deployed in a range independent bathymetric area, at 300 m and 1.3 km distance from the Research Vessel NRP D. Carlos I, whose track then moved away from the arrays, radiating noise in the frequency band bellow 750 Hz. The wave fronts structure, obtained from actual acoustic data of the above referred sea trial, reveals agreement with the simulations obtained with the proposed approach. These results suggest the feasibility of the method for future application in a passive ocean acoustics tomography framework to the estimation of sound speed perturbations in the water column.
dc.identifier.isbn978-1-4673-9978-4
dc.identifier.otherAUT: ABS01444; PFE00638; SJE00662;
dc.identifier.urihttp://hdl.handle.net/10400.1/9687
dc.language.isoeng
dc.peerreviewedyes
dc.publisherIEEE
dc.publisherOESIEEE
dc.publisherOES
dc.relation.isbasedonWOS:000390300800096
dc.titleAcoustic channel frequency response estimation using sources of opportunity
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceHarbin, China
oaire.citation.title2016 IEEE/OES China Ocean Acoustics Symposium (COA)
person.familyNameSantos
person.familyNameFelisberto
person.familyNameJesus
person.givenNameAna Bela
person.givenNamePaulo
person.givenNameSergio
person.identifier79549
person.identifier.ciencia-idF510-CA29-EBD0
person.identifier.ciencia-idD411-CBA8-85B8
person.identifier.orcid0000-0003-2041-2400
person.identifier.orcid0000-0001-7542-4332
person.identifier.orcid0000-0002-6021-1761
person.identifier.ridM-9474-2013
person.identifier.scopus-author-id57190983532
person.identifier.scopus-author-id6508039890
person.identifier.scopus-author-id7003729485
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication8b54b8d9-3963-4e2b-b40b-7d5c5260ac17
relation.isAuthorOfPublication6574c278-a803-4dbe-9140-4cd8272027db
relation.isAuthorOfPublicatione0226ece-3767-4beb-ab80-868e8897c14a
relation.isAuthorOfPublication.latestForDiscovery8b54b8d9-3963-4e2b-b40b-7d5c5260ac17

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