CDR激励器模数同播模式RDS信号插入设计与实现

Design and Implementation of RDS Signal Insertion Based on CDR Exciter

将广播数据系统RDS从模拟调频广播的应用扩展到数模同播的CDR发射设备中。根据CDR激励器技术标准单独设计了相关的RDS信号硬件电路,使用带有RDS插入功能的支持数模信号带内同播的CDR激励器安装在10k W数字音频广播发射机上进行实际播出测试,得出了RDS插入技术在采用数模信号带内同播的CDR激励器中可正常实现的结论。

The broadcasting data system （RDS） is extended from the analog FM broadcasting to the digital/analog broadcasting in CDR transmitting device. According to the CDR exciter technical standard, the related RDS hardware circuit is designed separately. The CDR exciter with RDS insertion function is installed in the 10KW digital audio broadcasting transmitter for test. The conclusion is that the RDS inserting technology can be used normally in the CDR exciter which supports digital and analog signal inband on channel（IBOC）.