방송공학회논문지 (Journal of Broadcast Engineering)

  • 제16권1호
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  • Pages.64-72
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  • 2011
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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 지상파 DTV 시스템에서 TxID를 이용한 부가데이터 전송 기법

Additional Data Transmission Scheme Using TxID Signal for ATSC System

  • 강동훈 (충남대학교 정보통신공학과) ;
  • 박성익 (한국전자통신연구원 방송시스템연구부) ;
  • 김홍묵 (한국전자통신연구원 방송시스템연구부) ;
  • 오왕록 (충남대학교 정보통신공학과)
  • Kang, Dong-Hoon (Dept. of Information and Communications Engineering, Chungnam National University) ;
  • Park, Sung-Ik (Broadcasting System Research Department, ETRI) ;
  • Kim, Heung-Mook (Broadcasting System Research Department, ETRI) ;
  • Oh, Wang-Rok (Dept. of Information and Communications Engineering, Chungnam National University)
  • 투고 : 2010.10.11
  • 심사 : 2010.12.31
  • 발행 : 2011.01.30
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초록

ATSC (Advanced Television Systems Committee) 지상파 DTV 시스템에서 단일 주파수 망 (Single Frequency Network) 구성 시 동일한 주파수 대역을 사용하는 다수의 송신기와 중계기들로 인하여 수신기에서는 필연적으로 간섭이 발생하게 된다. 이러한 간섭 문제를 해결하기 위하여 ATSC recommended practice (RP) A/111에서는 Kasami 수열로 구성된 송신 식별 (Transmitter Identification, TxID) 신호를 각 송신기 및 중계기에 할당하고 이를 송신 신호에 부가하여 전송한다. 본 논문에서는 TxID 신호로 제안된 Kasami 수열의 극성 및 위상을 조절하여 부가데이터를 전송하는 기법을 제안한다. 제안하는 기법에서 Kasami 수열은 송신기 및 중계기를 식별하기위한 TxID 신호로서의 기능을 수행할 뿐만 아니라 추가적으로 부가데이터를 전송할 수 있는 장점이 있다.

In a Single Frequency Network (SFN) for Advanced Television Systems Committee (ATSC) terrestrial digital television (DTV) system, the interferences induced by the multiple transmitters and/or repeaters using same frequency are unavoidable. To ease the interference handing in the SFN for ATSC DTV system, transmitter identification (TxID) signal is recommended in the ATSC terrestrial DTV system. The TxID signal is embedded in the ATSC DTV signal and transmitted from each transmitter and repeater within the SFN and in ATSC recommended practice (RP) A/111, Kasami sequence is recommended as the TxID signal. In this paper, we propose an additional data transmission scheme using the TxID signal. In the proposed scheme, the Kasami sequence not only acts as the conventional TxID of the SFN for ATSC terrestrial DTV system but also carriers the additional data bits on its polarity and the code phase.

키워드

참고문헌

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