상세정보
학술대회
A Novel Modulator for Equalization Digital On-Channel Repeater in ATSC System
- 발행일
- 200601
- 출처
- International Conference on Consumer Electronics (ICCE) 2006, pp.359-360
- 협약과제
- 05MR1300, 지상파 DTV SFN 송수신 기술 개발 (ATSC 지상파 DTV를 위한 이동 송수신 기술), 김승원
- 초록
- In this paper we propose a novel modulator for the Equalization Digital On-Channel Repeater (EDOCR) in ATSC System. The proposed modulator uses Equi-Ripple VSB filter instead of conventional Square Root Raised Cosine (SRRC) filter. Since the time delay of the EDOCR modulator can seriously affect the performance of ATSC legacy receivers, it is required that the processing time should be minimized as much as possible. So, the proposed modulator focuses on reduction of time delay with minimization of its performance degradation. By simulation results, the proposed modulator has not only relative short time delay, but also little performance degradation. Also, proposed modulator using ER filter satisfies FCC RF emission mask. © 2006 IEEE.
- KSP 제안 키워드
- RF emission, Root raised cosine(RRC), Short time, Time Delay, performance degradation, processing time, simulation results, square root raised cosine (SRRC) filter