超宽带系统中一种新型的MMSE-SRAKE接收机  

A New MMSE-SRAKE Receiver for Ultra-Wideband System

作　　者：秦冉冉[1] 雷华[1] 

机构地区：[1]南京邮电大学通信与信息工程学院,南京210003

出　　处：《系统仿真技术》2007年第4期197-200,205,共5页System Simulation Technology

摘　　要：根据超宽带室内信道多径的特点,阐述了一种新型的MMSE-SRAKE接收机,采用基于遗传(GA)算法的路径选择方法。仿真结果表明,通过合理次数的迭代,该接收机性能达到近似最优,优于传统的MMSE-SRAKE接收机。Due to a large number of multipath components in a typical ultra-wideband(UWB)system,a new MMSE-SRAKE receiver scheme was employed.In this paper,finger selection problem is investigated for a minimum mean square error(MMSE)UWB SRake receiver and a genetic algorithm(GA)based iterative scheme is proposed.The performance of simulation shows that it can achieve near optimal performance after a reasonable number of iterations and is better than conventional schemes.

关 键 词：超宽带 MMSE-SRAKE 路径选择 遗传算法 

分 类 号：TN91[电子电信—通信与信息系统]