A Novel Synchronization Scheme for OFDM-Based CMMB Receivers

被引：4
|
作者：
Chen, Xiuping [1 ]
Wu, Chuan [1 ]
Chen, Zhou [1 ]
Shen, Bo [2 ]
Zeng, Xiaoyang [1 ]
机构：
[1] Fudan Univ, State Key Lab ASIC & Syst, Dept Microelect, Room 320,Rd Zhangheng, Shanghai 201203, Peoples R China
[2] Sifond Microelect Co, Shanghai, Peoples R China
来源：
2009 IEEE 8TH INTERNATIONAL CONFERENCE ON ASIC, VOLS 1 AND 2, PROCEEDINGS | 2009年
关键词：
CMMB; CFO; SFO; OFDM; synchronization;
D O I：
10.1109/ASICON.2009.5351635
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel synchronization scheme aiming at the special frame structure of China mobile multimedia broadcasting (CMMB) is presented in this paper. Based on the fact that CMMB system is very sensitive to the synchronization error, this scheme gives a solution which integrates high precision symbol timing recovery, carrier frequency recovery and sampling clock frequency recovery. Simulation results show that proposed algorithm can perform robustly at -2dB SNR and TU6 channel with 300Hz Doppler frequency shift. The root mean square error (RMSE) of sampling clock frequency offset estimation and residual carrier frequency offset estimation is 50% less than that of conventional scheme.(1)
引用
收藏
页码：529 / +
页数：2
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