최근 들어 ATSC-DTV의 미래형 핵심기술로 손꼽히고 있는 송신기 식별기술(TxID ; Transmitter Identification)이 새로운 신기술로 대두되고 있으며, 이에 대한 구현성 검증은 현재 활발하게 논의 중인 재생중계기(EDOCR)와 연계된 단일주파수망(SFN; Single Frequency Network)기술의 실용화를 위한 핵심적 역할을 한다고 볼 수 있다. 하지만 종래의 TxID기술은 긴 주기의 워터마킹용 확산코드를 사용하므로 수신기 입장에서 하드웨어 부피가 크게 증가되는 문제점을 갖고 있다. 따라서 본 논문에서는 TxID 수신기 하드웨어 부피를 크게 경감시킬 수 있는 새로운 Decimated Correlation 기법을 이용한 DTV TxID 수신 신호의 효율적인 신호처리 기법을 제시하였으며, 모의실험을 통한 성능평가를 통해 제안한 알고리즘의 유용성을 입증하였다.
KSP Keywords
Transmitter Identification, single frequency network(SFN)
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