适用于多径信道环境下的基于子空间的UID  

Subspace-Based UID in Multipath Channels

作　　者：王春江[1] 顾局[1] 刘元安[1] 

机构地区：[1]北京邮电大学无线通信中心,北京100876

出　　处：《北京邮电大学学报》2005年第3期36-38,共3页Journal of Beijing University of Posts and Telecommunications

基　　金：国家"863计划"项目(2003AA12331004)

摘　　要：针对传统的基于子空间方法的用户识别检测器(UID)在多径信道环境下性能恶化的问题,基于重新构造的包含多径信道信息的信息序列矩阵,提出了一种新的基于子空间的UID.仿真结果证明,在多径信道和强"远-近效应"环境下,该UID可以保证较低的误警概率.For the problem of performance degradation of the traditional subspace-based user identification detector (UID) in multipath channels, based on the reconstructed signaling sequence matrix that includes the information of multipath channels, a new subspace-based UID was proposed. The simulation result shows that the proposed UID will be ensure a low false-alarm rate in both the multipath channels and heavy near-far effect environments.

关 键 词：子空间 用户识别检测器 多径信道 直扩码分多址接入 

分 类 号：TN914.53[电子电信—通信与信息系统]