摘要
随着有线电视数字化工作的推进,有线模拟电视信号终将被有线数字电视信号取代,监测工作也随之向数字领域转换。本文介绍有线模拟和有线数字电视信号在监测工作中的重点指标,并围绕这些指标进行了讨论,重点分析了有线电视信号平均信号电平、载噪比、调制误差率及比特误码率等指标的内在联系,总结了有线数字电视传输流的监测。
Along with promotion of cable TV digitalization, analog TV signal will eventually be replaced by digital TV signal. The work of cable TV monitoring should be to loons on digital signal. This paper introduces key indicators of analog signal and digital signal in the domain of TV monitoring, and analyzes cable TV signal＇s mean level, C/N, MER, BER and their internal relations. It also briefly introduces the monitoring of transport stream of cable digital TV.
出处
《广播与电视技术》
2015年第10期123-128,共6页
Radio & TV Broadcast Engineering
