Journal of Broadcast Engineering (방송공학회논문지)

The Korean Institute of Broadcast and Media Engineers (한국방송∙미디어공학회)
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Transmitter Identification Signal Analyzer

송신기 식별 신호분석기

  • Park, Sung-Ik (Broadcasting System Research Department, ETRI) ;
  • Lee, Jae-Young (Broadcasting System Research Department, ETRI) ;
  • Kim, Heung-Mook (Broadcasting System Research Department, ETRI) ;
  • Oh, Wang-Rok (Dept. of Electrical and Computer Engineering, Chungnam National University)
  • 박성익 (한국전자통신연구원 방송시스템연구부) ;
  • 이재영 (한국전자통신연구원 방송시스템연구부) ;
  • 김흥묵 (한국전자통신연구원 방송시스템연구부) ;
  • 오왕록 (충남대학교 전기정보통신공학과)
  • Published : 2008.05.30
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Abstract

Single frequency network (SFN) design based on the Advanced Television Systems Committee (ATSC) specification, a terrestrial digital television (DTV) system, normally causes a interference problem, among signals from multiple transmitters or repeaters. To solve this, the ATSC recommended practice (RP) introduces a transmitter identification (TxID) signal embedded in a signal from each transmitter or repeater. A TxID signal analyzer is then used to detect the TxID signal, and following the analysis results, a SFN design can be adjusted. This paper discusses the generation and usages of Kasami sequence, is used the TxID signal. The configuration of the TxID signal analyzer to efficiently detect TxID signal is proposed and the results of theoretical performance analysis are provided. Moreover, computer simulation and laboratory test results are provided to evaluate the performance of TxID signal analyzer and the theoretical performance analysis.

ATSC 방식의 지상파 디지털 TV 방송에서는 단일 주파수 망(Single Frequency Network: SFN) 구성 시 단일 주파수 사용에 따른 인접 송신기 혹은 중계기에 대한 간섭 문제가 발생한다. 이를 해결하기 위해 ATSC 권고에서는 각 송신기 및 중계기에 식별(Transmitter Identification: TxID) 신호를 할당하여 송신 및 중계 신호에 부가하여 전송하고, TxID 신호분석기를 통하여 각 송신기 및 중계기에 의해 발생되는 채널환경을 검출하여 망을 제어한다. 본 논문에서는 TxID 신호로 사용되는 Kasami 수열의 생성 및 DTV 신호로의 삽입방법에 관해 살펴보고, TxID 신호의 효율적인 분석을 위한 TxID 신호분석기의 구조를 제안한다. 또한, 수학적인 분석을 통해 제안된 TxID 신호분석기의 성능을 고찰하고, 전산실험 및 실험실 테스트를 통해 제안된 TxID 신호분석기의 성능을 검증한다.

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References

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