一种新的盲信道识别方法  

A New Method of Blind Channel Identification

作　　者：靳天玉[1] 孔彦杰[1] 段东波[1] 

机构地区：[1]兰州大学信息科学与工程学院,甘肃兰州730000

出　　处：《甘肃科学学报》2014年第1期11-13,共3页Journal of Gansu Sciences

基　　金：甘肃省自然科学基金项目(ZS011-A25016-G)

摘　　要：研究了信道FIR模型,提出用信道模式集仿真实际的时变信道,并在此基础上设计一种基于MMSE准则的完全盲信道估计算法,并将其应用于一个四进制通信系统仿真.仿真结果表明:新算法效果十分理想,当信噪比在6db时误码率接近0.The channel FIR model was investigated to simulate time-varying channels with a set of chan- nel models,and then, based on the MMSE criterion, a new method of blind channel estimation was de- signed. The method was applied to the simulation of a quaternary communication system. The simulation result shows that the new method is of high property,and the ECR is close to zero when the signal-to-noise ratio is about 6db.

关 键 词：信道识别 FIR 多用户检测 MMSE准则 

分 类 号：TN91[电子电信—通信与信息系统]