摘要
本文设计了一种多工器,实现模拟FM射频信号和数字CDR射频信号合成,合成的信号能够满足CDR频谱模式9模数同播时的频谱要求,在能够使用原有模拟调频发射机的基础上,提高发射系统整体的发射效率。
In this paper, a multiplexer is designed to realize the combining of analog FM RF signal and digital CDR RF signal. Combined signal can meet spectrum requirement of analog-to-digital simulcast broadcasting on CDR spectrum mode 9, and improve overall transmission efficiency of transmission system on the basis of using original analog FM transmitter.
作者
盛国芳
闭涛
赵长青
Sheng Guofang;Bi Tao;Zhao Changqing(Academy of Broadcasting Science,NRTA,Beijing 100866,China;Guangxi Radio&TV Broadcast Technology Center,Guangxi 530022,China)
出处
《广播与电视技术》
2021年第10期114-118,共5页
Radio & TV Broadcast Engineering
关键词
调频频段数字音频广播
模数同播
信号合成
发射效率
CDR
Analog-to-digital simulcast broadcasting
Signal combining
Transmitting efficiency
