摘要
我国广播信号使用的是中短波广播信号,其中的发射机是非常重要的设备之一,因为其在日常工作中所处的环境比较复杂,发射机会受到一定的电磁干扰,会对整个广播信号的传输工作造成影响,给信号传输的效率带来了一定的问题。为了能够解决电磁干扰问题,本文针对中短波广播信号和电磁干扰的概念进行一定的阐述,分析电磁干扰对中短波广播信号的影响,提出了中短波广播电磁干扰问题,分析具体的解决措施,包括促进共模干扰抗性的提升、有效提升常态干扰抗性、加强线间耦合干扰抗性以及强化地面干扰的处理工作,旨在能够通过多种方法解决电磁干扰问题,促进中短波广播信号的高质量传输。
My country's current broadcast signals are generally medium and short wave broadcast signals,and the transmitter is one of the very important equipment,because the environment in its daily work is more complex,so the transmitter will suffer certain electromagnetic interference problems;it will have a great impact on the transmission of the entire broadcast signal,affect the quality of the broadcast,and bring certain problems to the efficiency of its signal transmission.In order to be able to solve the problem of electromagnetic interference;this article first explains the concepts of medium and short wave broadcast signals and electromagnetic interference,then analyzes the influence of electromagnetic interference on medium and short wave broadcast signals,and puts forward the problem of electromagnetic interference in medium and short wave broadcasts,and finally analyzes the specific solution measures include promoting the improvement of common-mode interference resistance,effectively improving the resistance to normal interference,strengthening the resistance to coupling interference between lines,and strengthening the processing of ground interference.It aims to solve the problem of electromagnetic interference through a variety of methods and promote the high-quality transmission of medium and short wave broadcast signals.
作者
王建耿
艾明
WANG Jiangeng;AI Ming(Tibet Autonomous Region Radio and Television Bureau Yadong Zhongbo Broadcasting Station,Yadong Tibet 857600;Tibet Radio,Film and Television Program Transmission Center,Lhasa Tibet 850000)
出处
《中国科技纵横》
2022年第1期97-99,共3页
China Science & Technology Overview
关键词
中短波广播信号
电磁干扰
发射机
同频干扰
medium and short wave broadcast signal
electromagnetic interferencejtransmitter
co-channel interference
