基于TD-SCDMA终端的一种改进的自适应天线阵列算法  

An Improved Algorithm for Adaptive Antenna Array Based on Terminals of TD-SCDMA System

作　　者：李鹏[1] 

机构地区：[1]中国石油大学(华东)计算机与通信工程学院,山东青岛266555

出　　处：《西华大学学报（自然科学版）》2012年第1期59-62,共4页Journal of Xihua University:Natural Science Edition

基　　金：国家自然科学基金项目(60572020)

摘　　要：TD-SCDMA系统中,采用波束赋型技术在很大程度上降低了多址干扰,改善了通信质量。通过研究移动终端在使用天线阵列情况下的性能提升情况,提出了双天线自适应阵列应用于终端的方案。分析了不同情形下的双天线阵列的性能,并且基于特定的多径衰落信道环境对改进的NLMS-C算法和其他2种不同的自适应算法进行了仿真比较。仿真结果表明,采用双天线阵列移动终端系统能获得更好的性能。The muhi-access interference and quality of communication system can be greatly improved by beam forming technology when the smart antenna is adopted. This paper investigates the performance improvement given by a multi-antenna receiver on a mobile terminal , and a link level simulation scheme is presented based on TD - SCDMA system. The performance of dual smart antenna under different circumstances is analyzed, and the improved NLMS - C algorithm and two different adaptive algorithms are compared under the specifically modeled multipath fading channel. The simulation results show that a dual-antenna arrangement on a mobile termi- nal can achieve better performance..

关 键 词：时分同步码分多址 天线阵列 移动终端 训练序列 

分 类 号：TN914[电子电信—通信与信息系统]