一种新的去偏解相关多用户检测器  

New De-Biasing Decorrelating Multi-user Detector

作　　者：王伶[1] 焦李成[1] 刘芳[1] 

机构地区：[1]西安电子科技大学雷达信号处理国家重点实验室,西安710071

出　　处：《信号处理》2002年第3期208-211,共4页Journal of Signal Processing

基　　金：国家自然科学基金资助项目(60073053);国家863计划资助项目(863-317-03-05-99)

摘　　要：本文从ＤＳ－ＣＤＭＡ系统模型出发,研究了异步传输信道下接收信号的矩阵表达式并作了合理的近似,提出了一种新的适用于异步ＤＳ－ＣＤＭＡ信道的去偏解相关多用户检测器。研究结果表明,这种多用户检测器具有优良的性能,其运算复杂度较低,具有较强的抑制多址干扰和克服“远－近”效应能力。In this paper.by exploring the model of DS-CDMA system,we study the matrix expression of received signal in asynchronous DS-CDMA and present a de-biasing decorrelating multi-user detector applied to asynchronous transmittiing channel.Analysis and the results of the simulation show that the complexity of the detector is lower than that of the ordinary decorrelating detector and it precedes conventional detector in eliminating multi-user interference and 'near-far' resistance.

关 键 词：多用户检测器 DS-CDMA 匹配滤波 多址干扰 移动通信 

分 类 号：TN929.5[电子电信—通信与信息系统]