调频频段数字音频广播的调制误差率指标性能研究  

Research on MER Performance of Digital Audio Broadcasting in FM-Band System

作　　者：赵长青[1] 盛国芳[1] 吴智勇[1] ZHAO Changqing SHENG Guofang WU Zhiyong(Academy of Broadcasting Science, SAPPRFI＇, Beijing 100866, 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

出　　处：《广播与电视技术》2017年第1期91-94,共4页Radio & TV Broadcast Engineering

摘　　要：调频频段数字音频广播(CDR)是我国发布的数字广播标准,给出了调频频段广播数字化的方案。随着中央广播电视节目无线数字化覆盖工程的实施,发射机调制误差率(MER)对无线覆盖效果的影响受到了重视。本文主要研究了CDR发射机MER与接收门限的关系以及MER对无线覆盖的影响。FM-CDR is a digital broadcasting standard released by China, which gives a scheme of FM digital broadcasting. With implementation of digital wireless coverage project for central radio and television programs, the MER of transmitter has attracted widely attention. In this paper, two problems have been explored. One is relations between MER of CDR transmitter and receiving threshold. The other is the impact of MER on wireless coverage.

关 键 词：调频频段数字音频广播 调制误差率 接收门限 无线覆盖 

分 类 号：TN93[电子电信—信号与信息处理]