An improved symbol timing synchronization algorithm

被引：0
|
作者：
Zhao, Liang [1 ,2 ]
Li, Jingxiang [1 ,2 ]
Du, Yuhai [2 ]
Sun, Zhongsen [1 ,2 ]
机构：
[1] State Key Lab. of Complex Electromagnetic Environ. Effects on Electronics and Information System, Luoyang Henan 471003, China
[2] China Research Institute of Radiowave Propagation, Qingdao Shandong 266107, China
来源：
Dianbo Kexue Xuebao/Chinese Journal of Radio Science | 2013年 / 28卷 / 04期
关键词：
Timing circuits - Interpolation - Quadrature amplitude modulation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
According to Gardener algorithm based on 16 quadrature am plitude modulation (16QAM) communication system, an improved interpolation structure is proposed. It reduces the systematic errors caused by spectrum aliasing and improves the accuracy of the output of the filter. Timing error detection method is modified to achieve four level modulation signal symbol error and hardware implementation complexity is low. Simulation and practical test show that the algorithm has high robustness and effectiveness in low SNR and high symbol deviation. Copyright © 2013 by Editorial Department of Chinese Journal of Radio Science.
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页码：749 / 753
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