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학술대회 A New Synchronous Watermark Data Insertion Method for ATSC Transmission Systems
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저자
서영우, 박성익, 이재권, 김흥묵, 최진영, 서종수
발행일
200905
출처
International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB) 2009, pp.1-5
출판사
IEEE
DOI
https://dx.doi.org/10.1109/ISBMSB.2009.5133787
협약과제
09MR5600, 지상파 DTV 전송효율 고도화 기술개발, 김흥묵
초록
In this paper, a new synchronous insertion method of the uniquely assigned RF watermark data into ATSC transmitters and translators is proposed. Watermark data is generated, VSB filtered and up-converted to the same IF or RF frequency with the target transmission system. Frequency and timing of the generated RF watermark data are synchronized with the target system by extracting synchronization information from the exciter module of the target system. The generated synchronized RF watermark signal is combined with the output signal of the exciter of target transmitter at the level of the designated bury ratio. Performance of the proposed method is evaluated and compared with the conventional RF watermark insertion method through computer simulations.
키워드
ATSC, RF watermark, Single frequency network, Transmitter identification
KSP 제안 키워드
Computer simulation(MC and MD), Insertion method, RF frequency, Transmission system, Transmitter Identification, single frequency network(SFN)