Publication
Time-frequency approach to multipath underwater channel deconvolution
| dc.contributor.author | Martins, N. | |
| dc.contributor.author | Jesus, S. M. | |
| dc.contributor.author | Gervaise, C. | |
| dc.contributor.author | Quinquis, A. | |
| dc.date.accessioned | 2014-10-09T16:33:14Z | |
| dc.date.available | 2014-10-09T16:33:14Z | |
| dc.date.issued | 2002 | |
| dc.description.abstract | Blind deconvolution is presented in the underwater acoustic channel context, by time-frequency processing. The acoustic propagation environment was modelled as a multipath propagation channel. For noiseless simulated data, source signature estimation was performed by a model-based method. The channel estimate was obtained via a time-frequency formulation of the conventional matched-filter. Simulations used a ray-tracing physical model, initiated with at-sea recorded environmental data, in order to produce realistic underwater channel conditions. The quality of the estimates was 0.793 for the source signal, and close to 1 for the resolved amplitudes and time-delays of the impulse response. Time-frequency processing has proved to overcome the typical ill-conditioning of single sensor deterministic deconvolution techniques. | por |
| dc.description.sponsorship | MCT, FCT, PRAXIS XXI | por |
| dc.identifier.citation | N. MARTINS, "A Time-Frequency Approach to Blind Deconvolution in Multipath Underwater Channels" in IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), 2002, pp. 1225-1228. | por |
| dc.identifier.doi | http://dx.doi.org/10.1109/ICASSP.2002.5744022 | |
| dc.identifier.other | AUT: SJE00662; | |
| dc.identifier.uri | http://hdl.handle.net/10400.1/5247 | |
| dc.language.iso | eng | por |
| dc.peerreviewed | yes | por |
| dc.publisher | IEEE | por |
| dc.relation | LOCALIZAÇÃO E IDENTIFICAÇÃO ACÚSTICA DE ALVOS SUBMARINOS ATRAVÉS DE DESCONVOLUÇÃO ÓPTIMA MULTICANAL - MESTRADO EM ENGENHARIA DE SISTEMAS E COMPUTAÇÃO | |
| dc.title | Time-frequency approach to multipath underwater channel deconvolution | por |
| dc.type | conference object | |
| dspace.entity.type | Publication | |
| oaire.awardTitle | LOCALIZAÇÃO E IDENTIFICAÇÃO ACÚSTICA DE ALVOS SUBMARINOS ATRAVÉS DE DESCONVOLUÇÃO ÓPTIMA MULTICANAL - MESTRADO EM ENGENHARIA DE SISTEMAS E COMPUTAÇÃO | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT//PRAXIS XXI%2FBM%2F19298%2F99/PT | |
| oaire.citation.conferencePlace | Orlando, E.U.A. | por |
| oaire.citation.endPage | 1228 | por |
| oaire.citation.startPage | 1225 | por |
| oaire.citation.title | IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) | por |
| person.familyName | Jesus | |
| person.givenName | Sergio | |
| person.identifier.orcid | 0000-0002-6021-1761 | |
| person.identifier.scopus-author-id | 7003729485 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| rcaap.rights | openAccess | por |
| rcaap.type | conferenceObject | por |
| relation.isAuthorOfPublication | e0226ece-3767-4beb-ab80-868e8897c14a | |
| relation.isAuthorOfPublication.latestForDiscovery | e0226ece-3767-4beb-ab80-868e8897c14a | |
| relation.isProjectOfPublication | 3b2fbf6d-13e1-4b05-9e36-e9040bee1d60 | |
| relation.isProjectOfPublication.latestForDiscovery | 3b2fbf6d-13e1-4b05-9e36-e9040bee1d60 |
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