基于ML准则的DS-UWB系统的信道估计  

Channel estimation for DS-UWB system based on ML criterion

作　　者：夏斌[1] 闫东[1] 王文博[1] 

机构地区：[1]北京邮电大学电信工程学院,北京100876

出　　处：《山东大学学报（工学版）》2005年第5期53-55,共3页Journal of Shandong University（Engineering Science）

摘　　要：信道估计是超宽带通信系统必须加以解决的关键技术之一.针对DS-UWB(direct sequence ultra wideband)系统,提出了一种基于ML准则的信道估计算法,并对该算法的性能进行了分析.仿真结果表明,该算法有效易行,导频个数越大,估计的值越准确.In this paper, a channel estimation algorithm based on ML criterion is applied to direct sequence ultra wideband system. The performance using the algorithm is evaluated by computer simulation. The results show that the algorithm is effective and practical for DS-UWB system and the number of pilot must be large enough to guarantee adequate estimation accuracy.

关 键 词：直接序列超宽带(DS-UWB) 最大似然准则 二进制移相键控 

分 类 号：TN914.4[电子电信—通信与信息系统]