基于LMK准则的盲自适应多用户检测器  

A New Blind Multiuser Detector Based on LMK Criterion

作　　者：唐祖强 杨知行 潘长勇[1] 

机构地区：[1]清华大学电子工程系,北京100084

出　　处：《电子学报》2000年第4期40-42,共3页Acta Electronica Sinica

摘　　要：本文提出了一种加性高斯白噪声 (AWGN)信道下 ,同步直扩码分多址 (DS/CDMA)系统的基于LMK(最小平均峰度 ,LeastMeanKurtosis)准则的线性盲自适应多用户检测器 .这种检测器的算法是一种具有较低计算量的基于高阶统计量的算法 .分析证明了这种检测器的算法的收敛性和可以实现多用户信号的盲解相关 .并对基于该准则的线性盲自适应检测器和基于LMS(最小均方 ,LeastMeanSquare)In this paper a new linear blind adaptive multiuser detector in synchronous DS/CDMA system is proposed.Unlike the commonly used least mean square algorithm,a low computational complexity high order statistics based algorithm using least mean kurtosis (LMK) criterion is adopted.Some changes have been made to the original LMK algorithm in order to realize blind detection in DS/CDMA multiuser detection.Analysis of the blind algorithm is provided.Comparison between the LMS and LMK algorithms is also made via simulations.

关 键 词：码分多址 多用户检测 LMK准则 

分 类 号：TN914.5[电子电信—通信与信息系统]