预波束成形智能天线在GSM系统中的应用  

Application of smart antenna of switched-beam to GSM system

作　　者：张元培[1] 漆兰芬[1] 

机构地区：[1]华中科技大学电子与信息工程系,湖北武汉430074

出　　处：《华中科技大学学报（自然科学版）》2004年第3期103-105,共3页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目 (6 0 1710 13);华为科技基金资助项目

摘　　要：将预波束成形的智能天线及SDMA技术应用到GSM系统的扩容问题当中 ,对几种在多径环境下行之有效的DOA算法性能进行了对比 ,依据精确的用户来向角识别 ,利用切比雪夫线阵对下行波束进行了优化设计 ,并在一个蜂窝扇区的同一时隙中同时处理两个用户 ,从而将系统容量扩充为原来的 2倍 .The smart antenna of switched-beam and SDMA technique were used to expand the capacity of GSM system. The performance of several DOA algorithms effective in the multipath environment was compared. The DOA of each user was identified exactly. Chebyshev array was used to get optimum solution for multibeam designation and in the cellular sector of the same time slot two users were dealt with to expand the capacity of the system twice as it was. It was proved that the method of expanding the capacity of GSM system was feasible in theory.

关 键 词：预波束成形 智能天线 GSM系统 DOA 切比雪夫线阵 

分 类 号：TN821.91[电子电信—信息与通信工程]