Research on Synchronization Technique of the DRM System

摘要：

To deal with the degradation of the synchronization performance in low SNR condition, a novel DRM (Digital Radio Mondiale) synchronization algorithm is proposed. The proposed algorithm employs cyclic prefix for timing synchronization and fractional frequency offset estimation like conventional methods, but accomplishes frame synchronization and integer frequency offset estimation using time pilot cells and differential coding technologies, which are designed specially for the DRM system. After channel estimation and equalization, frequency pilot cells are used to estimate residue fractional frequency offset and subsequent sample offset as well as fixed phase offset to achieve complete synchronization. Simulation results show that the proposed algorithm can possesses better time and frequency synchronization performance than the conventional method in the multi-path fading channel with low SNR condition.

关键词： DRM OFDM Synchronization Cyclic-prefix Multi-path fading channel

作者: Guo Wen-fei Zheng Jian-sheng Cheng Wen Su Fan

作者单位: School of Electronic Information, WuHan University, WuHan,China

会议类型: 国际会议

会议名称: 2010 International Conference on Signal and Information Processing(2010年IEEE信号与信息处理国际会议 ICSIP2010)

会议地点: 长沙

会议语种:英文

页码: 241-245

在线出版日期: 2010-12-14（万方平台首次上网日期，不代表论文的发表时间）