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协同中继系统同步算法研究 被引量:1

Research of Synchronization Algorithm in Cooperative Relay Systems
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摘要 该文考虑了协同中继系统中的多时偏和多频偏估计问题,提出了一种基于恒幅零自相关基础序列的同步序列,进而提出了相应的多时偏和多频偏估计算法,相关的定时与频偏估计算法只需要做简单的自相关和互相关运算就可以获得良好的估计性能。仿真结果表明,所提出的同步序列和同步算法在协同中继系统中可以取得满意的系统性能。 The estimation of multiple timing offsets and multiple frequency offsets in cooperative relay system is investigated.A synchronization sequence based on constant amplitude zero auto-correlation sequence is constructed.Furthermore,the corresponding synchronization algorithms are proposed,which only need auto-correlation and cross-correlation operations.Simulation results show that the proposed preamble and synchronization algorithms can achieve satisfactory performance in cooperative relay system.
出处 《电子与信息学报》 EI CSCD 北大核心 2012年第1期20-25,共6页 Journal of Electronics & Information Technology
基金 国家973重点基础研究发展计划(2012CB316004) 国家科技重大专项(2012ZX03003013-004 2009ZX03003-004-02) 国家自然科学基金(61071112) 东南大学科技基金(3204001105 KJ2010400)资助课题
关键词 无线通信 协同中继系统 同步序列 定时估计 频偏估计 Wireless communication Cooperative relay system Synchronization sequence Timing offset estimation Frequency offset estimation
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参考文献15

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