TD-LTE自适应辅同步信号检测算法与仿真实现  

Simulation and realization on adaptive secondary synchronization signal detection in TD-LTE system

作　　者：李小文[1] 罗佳[1] 

机构地区：[1]重庆邮电大学重庆市移动通信技术重点实验室,重庆400065

出　　处：《计算机应用研究》2012年第10期3932-3934,共3页Application Research of Computers

基　　金：国家科技重大专项资助项目(2009ZX3002-009)

摘　　要：介绍了TD-LTE自适应辅同步信号的检测算法。该算法采用自适应反馈的方法,对由主同步序列估计的频域信道冲激响应进行修正,通过相干检测的方法有效地提高了辅同步序列检测的成功率,并利用索引号来检测辅同步序列,极大地减小了计算复杂度。理论分析和仿真结果表明,该算法在不同的信道环境下均具有良好的性能,能够满足TD-LTE系统辅同步信号检测的性能需求。This paper introduced the detection method of the adaptive secondary synchronization signal in the LTE-TDD system.Firstly,using adaptive feedback method to correct the frequency-domain channel impulsed response which estimated by the primary synchronization signal.Through the coherent detection,enormously improved the detection success rate for secondary synchronization signal.Moreover,the method of using indices to detect secondary synchronization sequences greatly reduced the computational complexity.Both theory analysis and simulation results show that proposed algorithm has good performance in different channel conditions,and can satisfy the performance demand by the detection of secondary synchronization signal in TD-LTE system.

关 键 词：LTE-TDD系统 辅同步信号 自适应反馈 相干检测 

分 类 号：TN915[电子电信—通信与信息系统]