多径信道下的一种恒模算法盲多用户检测  

A CMA-based Blind Multiuser Detector in Multipath Channels

作　　者：陈昕[1] 

机构地区：[1]装甲兵工程学院控制工程系,北京100072

出　　处：《无线互联科技》2015年第14期75-76,共2页Wireless Internet Technology

摘　　要：文章提出了一种应用于异步多径信道的基于线性约束抖动符号误差恒模算法(CDSE-CMA)的盲多用户检测算法。该方法计算复杂度低,鲁棒性能好。试验仿真证明,该多用户检测方法可以很好地抑制多址干扰和克服多径衰落,可以很好地适应动态系统环境。提出的方法在系统输出信干比,收敛性,跟踪性能,稳态性上有着综合平衡上的改善。A multiuser detection is proposed which is based on linearly constrainted dithered sign error constant modulus algorithm（CDSE-CMA） in asynchrony multipath channel.Its computional complexity is low,and its robustness is strong.Simulation results show that it can suppress multi-address interference, and overome multipath fading,moreover it can adapt to dynamic envirment effectively.The proposed algorithm obtains balanced improvements on following issues,such as the SIR performance,convergence, tracking and robustness properties.

关 键 词：码分多址 盲多用户检测 恒模算法 

分 类 号：TN911.2[电子电信—通信与信息系统]