Publication
A time-frequency approach to blind deconvolution in multipath underwater channels
| dc.contributor.author | Martins, N. | |
| dc.contributor.author | Jesus, S. M. | |
| dc.contributor.author | Gervaise, C. | |
| dc.contributor.author | Quinquis, A. | |
| dc.date.accessioned | 2015-12-15T15:51:25Z | |
| dc.date.available | 2015-12-15T15:51:25Z | |
| 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 I 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. | |
| dc.identifier.isbn | 0-7803-7402-9 | |
| dc.identifier.issn | 1520-6149 | |
| dc.identifier.other | AUT: SJE00662; | |
| dc.identifier.uri | http://hdl.handle.net/10400.1/7340 | |
| dc.language.iso | eng | |
| dc.peerreviewed | yes | |
| dc.publisher | IEEE | |
| dc.relation.isbasedon | P-000-S8H | |
| dc.relation.ispartof | International Conference on Acoustics Speech and Signal Processing ICASSP | |
| dc.title | A time-frequency approach to blind deconvolution in multipath underwater channels | |
| dc.type | conference object | |
| dspace.entity.type | Publication | |
| oaire.citation.conferencePlace | Orlando | |
| oaire.citation.endPage | 1228 | |
| oaire.citation.startPage | 1225 | |
| oaire.citation.title | IEEE Internacional Conference on Acoustics , Speech, and Signal Processing, 2002 | |
| oaire.citation.volume | 2 | |
| person.familyName | Jesus | |
| person.givenName | Sergio | |
| person.identifier.orcid | 0000-0002-6021-1761 | |
| person.identifier.scopus-author-id | 7003729485 | |
| rcaap.rights | openAccess | |
| rcaap.type | conferenceObject | |
| relation.isAuthorOfPublication | e0226ece-3767-4beb-ab80-868e8897c14a | |
| relation.isAuthorOfPublication.latestForDiscovery | e0226ece-3767-4beb-ab80-868e8897c14a |
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