TD-SCDMA系统智能天线波束形成算法的研究  

Study on beam forming algorithm of smart antenna in TD-SCDMA system

作　　者：李鹏[1] 李莉[2] 

机构地区：[1]中国石油大学(华东)计算机与通信工程学院,山东东营257061 [2]山东胜利职业学院建设分院,山东东营257000

出　　处：《河北工业科技》2011年第3期170-172,199,共4页Hebei Journal of Industrial Science and Technology

基　　金：国家自然科学基金资助项目(60572020)

摘　　要：TD-SCDMA系统基站端的智能天线通过波束形成能够显著减小多址干扰,改善通信质量。提出了一种加入扩频序列的协方差矩阵求逆最小二乘恒模(SMI-LSCMA)波束形成算法,该算法在SMI-LSCMA基础上利用特定用户信号的扩频序列信息来锁定该用户接收信号,这样可以使权值向量更新算法更快收敛。经过仿真验证,该算法具有较好的波束形成能力和较高的输出信噪比。The multi-acees＇s interference and quality of communication system can be greatly improved by beam forming when smart antenna is adopted, An improved SMI-LSCMA beam forming algorithm is proposed, in which the spread spectrum sequence of the given user＇s signal is used to lock the signal, thus accelerating the convergence of the weight value update algorithm. The simulation experiments show that the algorithm has good ability in beam forming and higher output SNR.

关 键 词：时分同步码分多址 智能天线 数字波束形成 扩频序列 

分 类 号：TN828.6[电子电信—信息与通信工程]