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dc.contributor.author최지웅-
dc.date.accessioned2019-11-20T04:47:12Z-
dc.date.available2019-11-20T04:47:12Z-
dc.date.issued2019-06-
dc.identifier.citationAD HOC NETWORKS, v. 89, Page. 161-169en_US
dc.identifier.issn1570-8705-
dc.identifier.issn1570-8713-
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S1570870518301604-
dc.identifier.urihttp://repository.hanyang.ac.kr/handle/20.500.11754/112531-
dc.description.abstractAcoustic communication in shallow water is characterized by multipath channels, which cause significant delay spreading, leading to inter-symbol interference. This inter-symbol interference necessarily causes a significant degradation in communication performance. Although a time reversal technique has been reported to produce satisfactory performance in multipath dominant environments, this technique requires a large receiver array covering the water column to achieve reliable communication performance. In this paper, a time reversal single-input multiple-output system using the pressure signal and the vertical component of the particle velocity is presented. The vertical component of the particle velocity was estimated using the finite difference in gradient between pressures measured by two vertically adjacent receivers. The experiment was conducted in shallow water off the south coast of Korea, where the water depth is 59 m and the bottom consists of silty clay. The results showed that the time reversal communication system based on vector quantities performed better than systems where only the pressure signals were used. (C) 2019 The Authors. Published by Elsevier B.V.en_US
dc.description.sponsorshipThis work was supported by the Agency for Defense Development, Korea, under Grant UD170022DD, the Ministry of Oceans and Fisheries (in a project titled the development of distributed underwater monitoring & control networks) and a "Development of maritime defense and security technology" grant (PE99741), promoted by the Korea Institute of Ocean Science and Technology (KIOST).en_US
dc.language.isoen_USen_US
dc.publisherELSEVIER SCIENCE BVen_US
dc.subjectUnderwater acoustic communicationen_US
dc.subjectParticle velocityen_US
dc.subjectTime reversal techniqueen_US
dc.titleTime reversal communication using vertical particle velocity and pressure signals in shallow wateren_US
dc.typeArticleen_US
dc.relation.volume89-
dc.identifier.doi10.1016/j.adhoc.2019.03.008-
dc.relation.page161-169-
dc.relation.journalAD HOC NETWORKS-
dc.contributor.googleauthorKim, Sunhyo-
dc.contributor.googleauthorKim, Hyeonsu-
dc.contributor.googleauthorJung, Seom-kyu-
dc.contributor.googleauthorChoi, Jee Woong-
dc.relation.code2019038672-
dc.sector.campusE-
dc.sector.daehakCOLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E]-
dc.sector.departmentDEPARTMENT OF MARINE SCIENCE AND CONVERGENCE ENGINEERING-
dc.identifier.pidchoijw-


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