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副载波技术具有开发周期短、成本低的优点,应用这项技术的风险比较低,可以更加及时的对信息进行发布,传达政令,从而达到紧急救灾的目的。本文对副载波技术的调频调制原理进行了介绍,对这项技术在调频立体声广播中的应用条件进行了分析,并对副载波技术在应急广播系统中的应用情况进行了介绍,希望对相关工作人员提供了一定帮助,实现对广播终端的远程控制,并保证图文信息的实时发布。
Subcarrier technology has the advantages of short development cycle and low cost. The risk of applying this technology is relatively low, and the information can be released and transmitted in a more timely manner so as to achieve the purpose of emergency relief. This paper introduces the FM modulation principle of subcarrier technology, analyzes the application condition of this technology in FM stereo broadcasting, and introduces the application of subcarrier technology in emergency broadcasting system. We hope that the relevant work Personnel provided some help to achieve the remote control of the broadcast terminal, and to ensure the real-time release of graphic information.