A Joint Rotational Periodogram Averaging and Demodulation Soft Information Carrier Synchronization Algorithm

被引：0
|
作者：
Liu, Peng [1 ]
Sun, Jinhua [1 ]
Wu, Xiaojun [2 ]
机构：
[1] Xidian Univ, State Key Lab Integrated Serv Networks, Xian, Peoples R China
[2] Changan Univ, Sch Informat Engn, Xian, Peoples R China
来源：
2013 IEEE INTERNATIONAL CONFERENCE OF IEEE REGION 10 (TENCON) | 2013年
基金：
中国国家自然科学基金;
关键词：
signal processing; periodogram averaging; soft information; Maximum-Mean-square Soft Output((MSO)-S-2-O-2); carrier estimation;
D O I：
暂无
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：
In short burst communication system, a joint rotational periodogram averaging (RPA) and demodulation soft information carrier estimation algorithm is proposed in this paper. Firstly, the coarse carrier estimation is carried out with periodogram averaging method after that the pilot sequence is rotated with different frequency offsets. Then, further fine carrier estimation is done by stepwise searching on the criterion of Maximum-Mean-square Soft Output ((MSO)-S-2-O-2). Simulation results show that the proposed algorithm with short pilots and lower complexity can achieve an excellent Bit Error Rate (BER) performance and eliminate large carrier offsets as much as half of the symbol rate. When BER is in the region of 10(-2)similar to 10(-5), Signal-to-Noise (SNR) degradation is within 0.3dB.
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页数：4
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