射频已调波同步技术在单频网中的应用探讨  

Radio Frequency Modulated Signal Synchronization in Single Frequency Network

作　　者：陈颖[1] 张智慧 李薰春[1] 戚武[1] 于新[1] CHEN Ying ZHANG Zhihui LI Xunchun QI Wu YU Xin(Academy of Broadcasting Science, SAPPRFT, Beijing, 100866, China Inner Mongolia Press and Publication Bureau, Inner Mongolia, 010050, China)

机构地区：[1]国家新闻出版广电总局广播科学研究院,北京100866 [2]内蒙古自治区新闻出版广电局,内蒙古010050

出　　处：《广播与电视技术》2017年第4期92-94,共3页Radio & TV Broadcast Engineering

摘　　要：本文首先分析同步广播单频网的常见技术问题,阐述传统基带同步方式与射频同步方式的不同特点,随后对射频已调波技术理论做简要介绍,最后对基于射频已调波方式的同步广播单频组网方法进行探讨。Along with the rapid development of radio and television industry, more and more radio and television programs are transmitted wirelessly. Spectrum resources therefore become scarce, and also the frequency reusability need to be improved. The frequency planning is experiencing a much more restrict situation. Single frequency network （SFN） based on synchronous broadcasting technology could save spectrum resources, inhibit the frequency interference, and improve the service quality. It is a widely used technology in broadcasting and TV frequency planning.

关 键 词：射频已调波 同步广播 单频网 

分 类 号：TN934.1[电子电信—信号与信息处理]