摘要
本文详细介绍了隧道调频广播覆盖系统中各种信号源技术方案,并对各方案进行了分析和比较。为了提升隧道调频广播的安全级别,提出了一种基于音频比对技术的信号源安全方案。通过引入音频比对技术,可以有效地提升隧道调频广播的安全播出水平,降低系统的信号源建设成本和维护成本。
This paper analyzes in detail the various source signal technical solutions for tunnel FM broadcasting coverage system,and compares those solutions.To improve the security level of tunnel FM broadcasting,a source signal security scheme based on audio comparison technology is proposed.The audio comparison technology effectively improves the security level of tunnel FM broadcasting,and reduces the source signal construction cost and maintenance cost.
作者
郑朝晖
Zheng Zhaohui(Shenzhen Broadcasting Transmission Center,Guangdong 518021,China)
出处
《广播与电视技术》
2018年第7期102-105,共4页
Radio & TV Broadcast Engineering
关键词
隧道调频广播覆盖系统
信号源
安全级别
音频比对
Tunnel FM broadcasting coverage system
Source signal
Security level
Audio comparison
