多径CDMA系统的子空间线性算法

Subspace-Based Linear Method for Multipath CDMA System

基于子空间分析的算法是线性多用户检测算法中一个较新的研究方向 ,目前许多文献中主要是针对单路径信道进行研究 ,本文提出了CDMA系统的多径信道模型的通用矩阵表示形式 ,对文献 [6 ]中提出的算法进行了改进 ,提出了多径干扰下基于子空间概念的线性算法 ,计算机仿真显示 ,该算法比原来的算法具有更好的抗多径干扰能力 .

Methods based on subspace analysis is an attractive direction in linear multiuser detection methods. So far many papers in this field have mainly worked on single_path channel. In this paper, we modified WANG X.D's formula and proposed a subspace_based linear detector which aims at multipath channel. The simulation shows that the new method is better than the original one in dealing with multipath effects.