본 논문에서는 ATSC (Advanced Television Systems Committee) 지상파 디지털 TV 방송 방식에서의 분산 주파수 망(distributed frequency network: DFN)의 특징 및 기술적인 요구사항에 관해 고찰하고, 그 요구사항을 만족하기 위한 분산중계기(Distributed Translator: DTxR)를 제안한다. DFN은 송신기와 중계기는 서로 다른 주파수를 사용하지만 동일한 송신기 신호를 중계하는 모든 중계기들 간에는 동일한 주파수를 사용하는 방송망이다. 또한, 본 논문에서는 DTxR 구현을 위한 복조, 등화, TxID (Transmitter Identification) 생성 및 삽입, 변조, 그리고 중계기간 주파수 일치 등과 같은 신호처리 기술을 소개한다.
KSP Keywords
Advanced television systems committee(ATSC), Transmitter Identification, frequency network
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