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Estimating bottom properties with a vector sensor array during MakaiEx 2005

2007Journal article Open access
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dc.contributor.authorSantos, P.
dc.contributor.authorFelisberto, P.
dc.contributor.authorJesus, S. M.
dc.date.accessioned2009-02-13T17:09:37Z
dc.date.available2009-02-13T17:09:37Z
dc.date.issued2007
dc.description.abstractNowadays, vector sensors which measure both acoustic pressure and particle velocity begin to be available in underwater acoustic systems, normally configured as vector sensor arrays (VSA). The spatial filtering capabilities of a VSA can be used, with advantage over traditional pressure only hydrophone arrays, for estimating acoustic field directionality as well as arrival times and spectral content, which could open up the possibility for its use in bottom properties' estimation. An additional motivation for this work is to test the possibility of using high frequency probe signals (say above 2 kHz) for reducing size and cost of actual sub bottom profilers and current geoacoustic inversion methods. This work studies the bottom related structure of the VSA acquired signals, regarding the emitted signal waveform, frequency band and source-receiver geometry in order to estimate bottom properties, specially bottom reflection coefficient characteristics. Such a system was used during the Makai 2005 experiment, off Kauai I., Hawai (USA) to receive precoded signals in a broad frequency band from 8 up to 14 kHz. The agreement between the observed and the modelled acoustic data is discussed and preliminary results on the bottom reflection estimation are presented.pt_PT
dc.formatapplication/pdfpt_PT
dc.identifier.citation2nd International Workshop on Marine Technology MARTECH 2007. - Vilanova I La Geltrú - Barcelona, 15-16 Novmber 2007. - 4 ppt_PT
dc.identifier.otherAUT: PJS01028; PFE00638; SJE00662;
dc.identifier.urihttp://hdl.handle.net/10400.1/110
dc.language.isoporpt_PT
dc.publisherVilanova I La Geltrú - Barcelonapt_PT
dc.relation.urihttp://www.bib.ualg.pt/artigos/DocentesEST/SANEst.pdfpt_PT
dc.rights.uriopenAccessen
dc.subjectProcessamento de sinaispt_PT
dc.subjectSensorespt_PT
dc.subject621.38pt_PT
dc.subjectVector sensorpt_PT
dc.subjectHigh frequency inversionpt_PT
dc.subjectGeoacoustic propertiespt_PT
dc.subjectReflection losspt_PT
dc.titleEstimating bottom properties with a vector sensor array during MakaiEx 2005pt_PT
dc.typejournal article
dspace.entity.typePublication
person.familyNameJorge Maia dos Santos
person.familyNameFelisberto
person.familyNameJesus
person.givenNamePaulo
person.givenNamePaulo
person.givenNameSergio
person.identifier79549
person.identifier.ciencia-idF91F-B793-622A
person.identifier.ciencia-idD411-CBA8-85B8
person.identifier.orcid0000-0002-0400-3298
person.identifier.orcid0000-0001-7542-4332
person.identifier.orcid0000-0002-6021-1761
person.identifier.ridM-9474-2013
person.identifier.scopus-author-id55490343300
person.identifier.scopus-author-id6508039890
person.identifier.scopus-author-id7003729485
rcaap.typearticlept_PT
relation.isAuthorOfPublication86c75c82-e755-44cb-abbc-4a63f4e7d52b
relation.isAuthorOfPublication6574c278-a803-4dbe-9140-4cd8272027db
relation.isAuthorOfPublicatione0226ece-3767-4beb-ab80-868e8897c14a
relation.isAuthorOfPublication.latestForDiscovery86c75c82-e755-44cb-abbc-4a63f4e7d52b

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