방송공학회논문지 (Journal of Broadcast Engineering)

  • 제21권6호
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  • Pages.899-912
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  • 2016
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  • 1226-7953(pISSN)
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  • 2287-9137(eISSN)
한국방송∙미디어공학회 (The Korean Institute of Broadcast and Media Engineers)
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ATSC 3.0 시스템을 위한 부트스트랩 신호를 이용한 동기 방식 연구

Study on Synchronization Using Bootstrap Signals for ATSC 3.0 Systems

  • 김정창 (한국해양대학교 전자전기정보공학부) ;
  • 김형석 (한국해양대학교 전자전기정보공학부) ;
  • 박성익 (한국전자통신연구원 방송시스템연구부) ;
  • 김흥묵 (한국전자통신연구원 방송시스템연구부)
  • Kim, Jeongchang (Division of Electronics and Electrical Information Engineering, Korea Maritime and Ocean University) ;
  • Kim, Hyeongseok (Division of Electronics and Electrical Information Engineering, Korea Maritime and Ocean University) ;
  • Park, Sung Ik (Broadcasting Systems Research Department, Electronics and Telecommunications Research Institute (ETRI)) ;
  • Kim, Heung Mook (Broadcasting Systems Research Department, Electronics and Telecommunications Research Institute (ETRI))
  • 투고 : 2016.09.12
  • 심사 : 2016.11.16
  • 발행 : 2016.11.30
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초록

ATSC 3.0 시스템에서는 각 프레임의 시작에 부트스트랩 (bootstrap) 신호가 먼저 전송된다. 본 논문에서는 부트스트랩 신호를 이용하여 ATSC 3.0 시스템의 초기 동기를 획득하는 방법을 제시한다. ATSC 3.0의 부트스트랩 신호는 시간 영역에서 반복되는 구조를 가지며 제안하는 방법은 이러한 구조를 이용하여 수신기에서 초기 동기를 획득한다. 또한, 전산 실험 결과는 제안하는 알고리즘이 매우 낮은 신호 대 잡음비 (signal-to-noise ratio)에서도 초기 동기를 획득할 수 있음을 보여준다.

In ATSC 3.0 systems, a bootstrap signal is located at the start of each frame. In this paper, we propose an initial synchronization scheme for ATSC 3.0 systems using the bootstrap signal. The bootstrap signal of ATSC 3.0 has several repetition patterns in the time domain. By utilizing the repetition patterns within the bootstrap, the proposed scheme can obtain an initial synchronization at the receiver. Also, simulation results show that the proposed scheme can obtain an initial synchronization at very low signal-to-noise ratios.

키워드

참고문헌

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