从模拟调频广播的现状比较DAB和CDR数字广播

Comparison of DAB and CDR digital broadcasting from current status of analog FM broadcasting

通过分析模拟调频广播的现状及各城市地方发射台的实际状况,对DAB和CDR两种数字广播系统的架构及其应用进行了比较,分析了两种系统各自的优势及存在的应用障碍,通过对两者的使用频段、频道带宽、频谱模式等对比,提出了让CDR在III波段应用的独特建议。

In this paper, by analyzing the current status of analog FM broadcasting and the actual situation of local launch pad in cities, we compare the architecture and application of DAB and CDR digital broadcasting system, analyze the advan- tages and disadvantages of the two systems, and put in the unique recommendations about the application of the CDR in the III band through the contrast of the band, channel bandwidth, spectrum mode of the two systems.