摘要
根据有线电视数字化和有线数字电视机顶盒入网检测现状,结合GY/T240-2009《有线数字电视机顶盒技术要求和测量方法》对机顶盒工作原理作介绍,对有线数字电视机顶盒测试方法进行探讨,设计了实验室测试平台。通过分析抗脉冲干扰、整机功耗等关键测试点对有线数字电视机顶盒测试方法进行剖析。
According to the present status of digital cable television and digital cable television set top box, combining with GY/T 240 -2009 Technical Requirements and Measurement Methods of Digital Cable Televi- sion Set Top Box, this paper firstly introduces the principle of digital cable television set top box. Secondly it discusses the measurement methods of digital cable television set top box and designs the lab test platform. Fi- nally this paper explains the measurement methods of digital cable television set top box, based on the analysis of key point, such as tolerance to impulsive interference, power dissipation etc.
出处
《中国有线电视》
2010年第5期567-572,共6页
China Digital Cable TV
关键词
数字电视
机顶盒
信道
脉冲干扰
功耗
digital television
set top box
channel
impulsive interference
power dissipation
