Publicação
Superimposed training low probability of detection underwater communications
| dc.contributor.author | Louza, Fábio B. | |
| dc.contributor.author | DeFerrari, Harry A. | |
| dc.date.accessioned | 2020-10-16T09:23:54Z | |
| dc.date.available | 2020-10-16T09:23:54Z | |
| dc.date.issued | 2020 | |
| dc.description.abstract | This paper proposes a superimposed training method for low probability of detection underwater acoustic communications. A long pilot sequence was superimposed to the message for equalization and synchronization purposes. A fast Hadamard transform (FHT) estimated the channel impulse response and compressed the pilot energy. A Wiener filter performed equalization. The interference signal was removed using hyperslice cancellation by coordinate zeroing. An inverse FHT decompressed the remaining sequence energy and the message was retrieved. Results from a shallow water experiment presented bit error rates <10-2 for signal-to-noise ratios <-8 dB. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.doi | 10.1121/10.0001934 | pt_PT |
| dc.identifier.issn | 0001-4966 | |
| dc.identifier.uri | http://hdl.handle.net/10400.1/14782 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.publisher | Acoustical Society of America | pt_PT |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt_PT |
| dc.subject | Acoustic communications | pt_PT |
| dc.title | Superimposed training low probability of detection underwater communications | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | EL278 | pt_PT |
| oaire.citation.issue | 3 | pt_PT |
| oaire.citation.startPage | EL273 | pt_PT |
| oaire.citation.title | The Journal of the Acoustical Society of America | pt_PT |
| oaire.citation.volume | 148 | pt_PT |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | article | pt_PT |
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