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Design of QPSK Ultrasonic Transceiver For Underwater Communication  

Cho Nai-Hyun (Dept. of Electronic Engineering, Kyung Hee University)
Kim Duk-Yung (Dept. of Electronic Engineering, AJOU University)
Kim Yong-Deuk (College of Information Technology, AJOU University)
Chung Yun-Mo (College of Electronics & Information, Kyunghee University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SC / v.43, no.3, 2006 , pp. 51-59 More about this Journal
Abstract
In this paper, we propose an excellent ultrasonic transceiver system based on a QPSK modulation technique for underwater communication. The transmitter sends a still image at the level of 187dB re $1{\mu}Pa/V@1m$ through a power amplifier by driving an ultrasonic sensor. The receiver performs digital conversion at the 100kHz sampling frequency, demodulation and decoding process for the image sent from the transmitter through the underwater communication. We have shown that the processed image at the receiver is almost the same as the orignal one. The maximum detection distance of the system proposed in this paper is approximately 1.17km. To cope with the difficulties of transmission loss, this paper proposes, implements and analyzes important parameters of sensors and circuits used in the system. Most of the underwater communication has focused on the transmission of audio signal, but this paper suggests an efficient underwater communication system for still image transmission.
Keywords
QPSK modulation/demodulation; still image; ultrasonic sensor; maximum detection distance;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 D. Kilfoyle and A. Baggeroer, 'The state of the art in underwater acoustic telemetry'. IEEE J. of Ocean Eng, 25, pp. 4-27, Jan. 2000   DOI   ScienceOn
2 박종원외 6인 'QPSK 방식을 이용한 수중영상 정보전송 시스템의 DSP구현 및 실해역 실험연구', 한국음향학회지, 제3권, 117-124쪽, 2004년
3 이레테크 미니탭사업부, 'MINITAB 실무완성', 이레태크, 14장 26-35쪽, 2000년 4월
4 서울대학교 생산기술 연구소, '전자응용', 1장 1-15쪽, 1988년 3월
5 이경우, 권재환, 소형종,'광대역 초음파 수중음향특성을 얻기위한 3단 음향임피던스 매칭기법', 해상무기체계 발전 세미나(국방과학연구소), 제5회, 376-382쪽, 2004년 6월
6 Robert J. Urick, 'Principle Of Underwater Sound' , McGraw-Hill, pp. 208-212, 1983
7 박송배, '교류회로이론', 문운당, 415-420쪽, 1990년 1월
8 산업자원부, '초음파를 이용한 수중영상 정보전송 최종보고서', 산업자원부, 별첨 5-7쪽, 2004년 9월
9 한국산업기술평가원, '민군겸용기술개발 계획서', 한국산업기술평가원“, 5-7쪽, 2002년 11월
10 H. Ko, 'A High Performance Parallel Architecture for Adaptive Beamforming', Dept. of Electrical and Computer Engineering, North Carolina State University, Raleigh, NC, 1995
11 J. Proakis, 'Digital Communications', McGraw Hill, 1893