상세정보
학술지
Novel Equalization On-Channel Repeater with Feedback Interference Canceller in Terrestrial-Digital Multimedia Broadcasting System
- 발행일
- 200908
- 출처
- ETRI Journal, v.31 no.4, pp.357-364
- ISSN
- 1225-6463
- 출판사
- 한국전자통신연구원 (ETRI)
- 협약과제
- 09MR5600, 지상파 DTV 전송효율 고도화 기술개발, 김흥묵
- 초록
- In this paper, we propose a novel equalization onchannel repeater (OCR) with a feedback interference canceller (FIC) to relay terrestrial digital multimedia broadcasting signals in single frequency networks. The proposed OCR not only has high output power by cancelling the feedback signals caused by insufficient antenna isolation through the FIC, but also shows better output signal quality than the conventional OCR by removing multipath signals existing between the main transmitter and the OCR through an equalizer. In addition, computer simulations and laboratory test results demonstrate that the proposed OCR successfully cancels feedback signals and compensates channel distortions and provides a higher quality transmitting signal with higher output power than conventional OCRs.
- KSP 제안 키워드
- Antenna isolation, Broadcasting system, Computer simulation(MC and MD), High output power, Interference canceller, Laboratory test, Signal quality, Terrestrial-digital multimedia broadcasting(T-DMB), feedback signal, multipath signals, single frequency