地面数字电视前端信号干扰问题分析与对策  

Analysis and Countermeasures of Signal Interference in the Frontend of Terrestrial Digital Television

作　　者：樊鹏 FAN Peng(Shanxi Radio and Television Wireless Management Center 1125,Taiyuan 030000,China)

机构地区：[1]山西广播电视无线管理中心1125台,山西太原030000

出　　处：《电视技术》2023年第6期101-103,共3页Video Engineering

摘　　要：地面数字电视技术的发展,使电视业进入数字化时代,高质量的信号服务成为电视节目清晰、流畅播出的前提。基于信号质量评估理论,结合地面数字电视信号传输的技术特点,分析数字电视前端出现信号干扰问题的各种因素,包括电磁波干扰、多路径效应、气象条件变化等,针对问题,总结保障信号服务质量的主要对策,以期为广播电视事业发展提供具体的参考。The development of terrestrial digital television technology has brought the television industry into the digital age.High-quality signal service has become a prerequisite for the clear and smooth broadcasting of television programs.Based on the theory of signal quality evaluation and the technical characteristics of terrestrial digital television signal transmission,this paper analyzes the factors that cause signal interference problems in the front end of digital television,including electromagnetic interference,multipath effects and weather changes.It summarizes the main countermeasures to ensure signal service quality in order to provide specific construction references for the development of radio and television.

关 键 词：地面数字电视 信号干扰 广播电视 

分 类 号：TN948.14[电子电信—信号与信息处理]