异步CDMA系统中的盲多用户检测算法  

Blind Multiuser Detection Algorithms in Asynchronous CDMA System

作　　者：宋春玲[1] 吕明[1] 

机构地区：[1]电子科技大学电子工程学院,成都610054

出　　处：《电子科技大学学报》2004年第3期235-238,共4页Journal of University of Electronic Science and Technology of China

摘　　要：针对实际应用中的DS/CDMA系统多为多径衰落信道下的异步DS/CDMA系统情况,通过对用于AWGN信道下的同步DS/CDMA系统中的常规盲多用户检测算法的改进,使这类算法在多径衰落信道下的异步DS/CDMA系统中仍具有很好的性能。理论分析和计算机仿真结果证实了改进方法的可行性。Aim at the case that the practical DS/CDMA system often is asynchronous DS/CDMA system in multipath fading channel, some conventional blind multi-user detection algorithms, which were applied to synchronous DS/CDMA system in AWGN channel, are modified, and to use them to asynchronous DS/CDMA system in multipath fading channel,these modified algorithms have good performance.Theoretical analysis and computer simulation confirm that these modified methods are available.

关 键 词：多址干扰 盲多用户检测 异步码分多址 LS准则 

分 类 号：TN929.5[电子电信—通信与信息系统]