상세정보
학술대회
Pre-equalization Method to Minimize Time Delay of Equalization Digital On-Channel Repeater in ATSC System
- 발행일
- 200701
- 출처
- International Conference on Consumer Electronics (ICCE) 2007, pp.1-2
- 협약과제
- 06MR3200, 지상파 DTV 분산중계 기술개발, 김흥묵
- 초록
- This paper presents a novel pre-equalization method to minimize the signal processing time delay of the Equalization Digital On-Channel Repeater (EDOCR) for the ATSC terrestrial digital TV system. The proposed preequalization method is to calculate pre-equalizer filter coefficients by using a baseband signal as a reference signal and a demodulated repeater output signal, then to create new VSB pulse shaping filter coefficients by the convolution of the EquiRipple (ER) filter and the pre-equalizer filter coefficients. The new VSB pulse shaping filter minimizes the time delay of the EDOCR by adjusting the number of its pre-taps and also compensates the linear distortions due to the use of the ER filter and mask filter. ©2007 IEEE.
- KSP 제안 키워드
- Filter coefficients, Pre-equalizer, Processing time delay, Pulse shaping filter, Reference signal, Signal Processing, baseband signal, digital TV, pre-equalization