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多径衰落信道中的一种新的多用户检测算法 被引量：1

A Novel Blind Adaptive Multiuser Algorithm Based on CMA in Multipath Channels
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摘要 多用户检测在码分多址信号中有着广泛的应用。基于恒模算法(CMA)提出了一种新的多用户检测算法。该算法的本质是不直接对滤波器的系数进行估计,而是对噪声空间系数进行估计,再对系数计算。对比恒模算法,仿真结果表明新算法具有信噪比高,误码率低的特点等。 The multi user detection is extensively concerned in CDMA. A novel multiuser algorithm is proposed on CMA. It has the characteristic of SIR highly and BER lowly. The essence of algorithm is that the coefficients of filter estimated are not directly. But first we estimate the coefficients of noise subspace,then synthesize the the coefficients of noise subspace and the coefficients of signal subspace and compare the CMA algorithm simulation resultion that show the efficiency of proposed algorithm.
作者 李辉 张安 徐琦 吉世栋
机构地区 西北工业大学电子信息学院 陕西烽火通信集团有限公司
出处 《传感技术学报》 EI CAS CSCD 北大核心 2006年第1期238-240,共3页 Chinese Journal of Sensors and Actuators
基金 航空基础科学基金资助(05D53021)
关键词 码分多址 盲自适应 多用户检测 最小二乘算法 CDMA blind adaptive multiuser detection , least squares
分类号 TN911.23 [电子电信—通信与信息系统]
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共引文献16

同被引文献18

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传感技术学报
2006年 第1期

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