Proceedings of the Korea Committee for Ocean Resources and Engineering Conference (한국해양공학회:학술대회논문집)
- 2003.05a
- /
- Pages.336-340
- /
- 2003
A New Frame Synchronization Scheme for Underwater Ultrasonic Image Burst Transmission System
초음파를 이용한 수중 영상 버스트 전송 시스템을 위한 새로운 프레임 동기 방안
-
Kim, Seung-Geun
(Ocean Development System Laboratory, KORDI)
;
-
Choi, Young-Chol
(Ocean Development System Laboratory, KORDI)
;
- Park, Jong-Won (Ocean Development System Laboratory, KORDI) ;
-
Kim, Sea-Moon
(Ocean Development System Laboratory, KORDI)
;
-
Lim, Yong-Gon
(Ocean Development System Laboratory, KORDI)
;
- Kim, Sang-Tae (Electrical Engineering Department, Arizona State University)
-
김승근
(한국해양연구원 해양시스템연구본부)
;
-
최영철
(한국해양연구원 해양시스템연구본부)
;
- 박종원 (한국해양연구원 해양시스템연구본부) ;
-
김시문
(한국해양연구원 해양시스템연구본부)
;
-
임용곤
(한국해양연구원 해양시스템연구본부)
;
- 김상태 (아리조나 주립대학교 전자공학과)
- Published : 2003.05.23
Abstract
The frame synchronization should be acquired before performing other data-aided receiving algorithms, such as data-aided channel equalizing, beam-forming and phase, symbol timing, and frequency synchronizing, since all of them are using preamble or training sequence to estimate the amount of error from the received signal. In this paper, we present a new frame synchronization scheme for underwater ultrasonic image burst transmission system, which computes the correlation between received symbol sequence and one CAZAC sequence, composed of the latter half of the first CAZAC sequence of preamble and the first half of the second CAZAC sequence of preamble and then compares a threshold value. If the correlation value is bigger than the threshold value, the frame detector determines that the frame synchronization is achieved at that sample.