中波广播发射的信道噪声问题与对策  

Discussion on Channel Noise Problems and Countermeasures of Medium Wave Broadcast Transmission

作　　者：李璇 LI Xuan(Yuxi 693,Yunnan Radio and Television Bureau,Yuxi 653100,China)

机构地区：[1]云南省广播电视局玉溪693台,云南玉溪653100

出　　处：《电声技术》2020年第10期44-46,49,共4页Audio Engineering

摘　　要：控制信号传输质量对保证广播信号质量具有重要影响,尤其是对中波广播。控制信号传输质量需要从控制信道噪声方面入手,采取措施降低信号噪声,提升广播发射质量。因此,从信道噪声的含义入手,剖析产生信道噪声的原因,讨论信道噪声的传播媒介,进而阐述信道噪声对中波广播发射的影响,探讨降低信道噪声的重要性,并归纳总结降低信号噪声的相关措施。Controlling the quality of signal transmission is very important to guarantee the quality of broadcasting signal,especially for medium wave broadcasting.To control the quality of signal transmission,it is necessary to control the channel noise,take measures to reduce the signal noise and improve the quality of broadcasting transmission.Therefore,beginning with the meaning of channel noise,this paper analyzes the causes of channel noise,discusses the media of channel noise,and then expounds the influence of channel noise on the transmission of medium wave broadcasting,and probes into the importance of reducing channel noise,and summarized the relevant measures to reduce signal noise.

关 键 词：中波广播发射 信道噪声 发射强度 

分 类 号：TN934[电子电信—信号与信息处理]