A Mobile Measurement Technique of Picture Quality Impairing Factor In Mobile Television Reception under Multipath Propagation Environments

다중경로 전파환경에서 텔레비전 이동수신시의 화상품질 열화요인 이동측정법

This paper presents a mobile measurement technique of the ghost-flutter caused in mobile television reception. The ghost-flutter is caused by timing variation of the television horizontal synchronizing pulse due to frequency selective fading in a multipath propagation environment. The ghost-flutter can be detected by measuring the dynamic timing variation of horizontal synchronizing pulse. Especially, in this paper, a technique for measuring horizontal synchronizing timing fluctuations which cause the ghost-flutter is developed, using a Rubidium oscillator as a time standard with high stability.