监测系统中波广播接收效果改善创新实践  

Innovative Practice for Improving the Reception Effect of Medium Wave Broadcasting in Monitoring Systems

作　　者：綦宗金 刘泽龙 Qi Zongjin;Liu Zelong(Shandong Radio and Television Monitoring Center,Shandong 250062,China)

机构地区：[1]山东省广播电视监测中心,山东250062

出　　处：《广播与电视技术》2023年第9期126-129,共4页Radio & TV Broadcast Engineering

摘　　要：由于传输和接收过程中的无用信号及外部噪声等因素干扰,中波广播接收一直存在障碍,影响接收效果。为有效改善中波广播监测接收效果,实现中波广播的安全播出及对特定频率的有效监测,山东省广播电视监测中心在对全省中波广播监测站点按照缩短接收距离原则重新选择的基础上,采用“初级线圈+次级线圈”的无源调谐技术模式自主研制天线,明显提升了输出信噪比,大幅改善了接收效果。Due to the interference of useless signals and external noise during transmission and reception,there have been obstacles in the reception of medium wave broadcasting,which affect the reception effect.To effectively improve the reception effect of medium wave broadcasting monitoring,achieve safe broadcasting of medium wave broadcasting and effective monitoring of specific frequencies,Shandong Radio and Television Monitoring Center has re-selected the medium wave broadcasting monitoring stations in the province based on the principle of shortening the reception distance,and independently developed antennas using the passive tuning technology mode of“primary coil+secondary coil”,significantly improving the output signal-to-noise ratio and greatly improving the reception effect.

关 键 词：中波 接收天线 广播电视监测 

分 类 号：TN934[电子电信—信号与信息处理]