基于数字微波通信技术的广播音频智能备播方案研究

Research on Intelligent Broadcasting Audio Preparation Scheme Based on Digital Microwave Communication Technology

随着数字微波通信技术在广播电视领域的广泛应用,加快了数字微波干线网建设和使用的步伐,使得大容量、高速率的广播音频信号传输成为可能,也为获得良好的节目播出效果打下坚实的技术基础。基于此,首先介绍数字微波通信技术及数字微波骨干网的技术特点和工作原理,其次分析基于数字微波通信技术的广播音频智能备播方案,并分别从发射主机、备播系统2个方面论述音频信号源智能切换的方法。该方案有效解决了当卫星音频信号源受扰或中断时的备用信号源切换问题,能够为广播发射站点提供稳定可靠的信号源。

With the widespread application of digital microwave communication technology in the field of broadcasting and television,the construction and use of digital microwave trunk networks have accelerated,making it possible to transmit high-capacity and highspeed broadcasting audio signals,and laying a solid technical foundation for achieving good program broadcasting effects.Based on this,firstly,the technical characteristics and working principles of digital microwave communication technology and digital microwave backbone network are introduced.Secondly,the intelligent broadcasting audio preparation scheme based on digital microwave communication technology is analyzed,and the methods of intelligent switching of audio signal sources are discussed from two aspects:the transmitting host and the preparation system.This solution effectively solves the problem of switching backup signal sources when the satellite audio signal source is disturbed or interrupted,and can provide a stable and reliable signal source for broadcasting transmission stations.