CDR单频网组网关键技术探讨

Discussion on Key Technology of CDR SFN Networking

随着广播业务的不断开拓,调频频段频谱资源日益紧张。CDR作为具有我国自主知识产权的数字音频广播标准,对其单频网(SFN,Single Frequency Network)组网技术开展研究将极大节省宝贵的频率资源,同时将进一步丰富其应用场景。本文将首先对纯数字CDR系统的单频网组网技术开展探讨,并就系统关键设备升级改造提出建议。

As the continuous development of broadcasting business, FM spectrum resource is short increasingly. CDR （China Digital Radio） is a digital audio broadcasting standard with independent intellectual property rights. CDR SFN （Single Frequency Network） networking technology greatly save valuable frequency resources, and enrich its application scenarios. This paper discusses the SFN networking technology of digital CDR system, and puts forward some suggestions on key equipment upgrading in the system.