Time reversal communication using vertical particle velocity and pressure signals in shallow water SCIE SCOPUS

Cited 2 time in WEB OF SCIENCE Cited 2 time in Scopus
Title
Time reversal communication using vertical particle velocity and pressure signals in shallow water
Author(s)
Kim, Sunhyo; Kim, Hyeonsu; Jung, Seom-kyu; Choi, Jee Woong
KIOST Author(s)
KIM, Sunhyo(김선효)
Publication Year
2019-06-01
Abstract
Acoustic 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.
ISSN
1570-8705
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/603
DOI
10.1016/j.adhoc.2019.03.008
Bibliographic Citation
AD HOC NETWORKS, v.89, pp.161 - 169, 2019
Publisher
ELSEVIER SCIENCE BV
Subject
UNDERWATER ACOUSTIC COMMUNICATION; PASSIVE-PHASE CONJUGATION; RECEIVER; EQUALIZATION; DIVERSITY; CHANNELS
Keywords
Underwater acoustic communication; Particle velocity; Time reversal technique
Type
Article
Language
English
Document Type
Article
Publisher
ELSEVIER SCIENCE BV
Related Researcher
Research Interests

Underwater acoustics signal processing,SONAR detection performance analysis,Underwater acoustic sensor networks,수중 음향 신호 처리,소나 탐지 성능 분석,수중 음향 센서 네트워크

Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse