摘要
DRM+标准是欧洲DRM工作组提出的,针对模拟广播数字化的标准,是唯一的覆盖超短波、短波、中波、长波波段数字广播的国际标准。以DRM+标准为基础,讨论DRM+调频广播的优势;针对目前没有开源软件接收机的现状,提出了数字信号处理部分的一种实现框架;选取信号同步、解调制、信道估计以及解码等模块的方案,编写代码最终实现了原始广播信号的输出,并通过MATLAB仿真给出了信噪比与星座图,通过分析验证了方案的正确性。
DRM＋ is the standard for digitizing analog broadcast by DRM group,which is the only universal standard of the digital broadcasting covers on the ultrashort wave to long wave band.introduces The advantages of DRM＋ digital frequency modulation broadcasting system is given,and the implementation procedure of digital signal processing is proposed.The appropriate schemes for signal synchronization,demodulation,channel estimation,channel decoding source decoding are finished,and program is done to output the the original broadcast signal.The SNR and constellation figure are given by MATLAB,which verifies that this method is correct.
出处
《电子测量技术》
2011年第12期16-19,共4页
Electronic Measurement Technology
基金
天津市科技支撑计划重点项目(09ZCKFGX29200)
天津大学创新基金资助项目
关键词
DRM+标准
调频广播
接收机
数字信号处理
DRM＋ standard
frequency modulation broadcasting
receiver
digital signal processing
