摘要
主要介绍有线数字电视的平均功率电平、误码率(BER)、调制误差率(MER)三个关键参数的物理概念、测试方法,以及在技术维护中利用这三个参数分析和判断网络出现的各种质量问题,有效保证数字电视信号在网络中的传输质量。
This article mainly introduces the physical concepts and test methods of the three key parameters of the average power level,bit error rate( BER),and modulation error rate( MER) of cable digital TVs. It also describes how to use these three parameters to analyze and judge the network appearance in technical maintenance and effectively ensure the quality of digital television signal transmission in the network.
作者
王世文
吴海龙
WANG Shiwen;WU Hailong(Liaoning News,Publishing,Broadcasting,Fihn and Television Development Research Center,Shenyang 110016,China;Liaoning Radio and Television Transmission and Transmission Center,Shenyang 110016,China)
出处
《中国有线电视》
2018年第5期583-585,共3页
China Digital Cable TV