一种超宽带信道估计算法及其特性  

Characteristics Research on a Channel Estimation Algorithm in Ultra-Wide Band System

作　　者：肖尚辉[1] 江毅[2] 

机构地区：[1]四川宜宾学院物理与电子信息系,四川宜宾644007 [2]北京理工大学光电工程系,北京100081

出　　处：《信息与电子工程》2007年第2期95-99,共5页information and electronic engineering

基　　金：四川省教育厅青年基金资助项目(2003A042);宜宾学院院级自然科学项目(2006Z14)

摘　　要：在传承经典谱估计和结构化线性系统思想的基础上,介绍了一种基于子空间的超宽带(Ultra-Wide Band,UWB)信道估计(Channel Estimation,CE)快速算法。该算法在低于Nyquist采样率的情况下可获得较高分辨率的信道估计,从而可降低系统的复杂度,减小系统的功耗。On the basis of well-known spectrum estimation techniques and structured linear systems, a algorithm about subspace channel estimation in Ultra-Wide Band（UWB） system is presented. This method allows for high-resolution Channel Estimation（CE） using sub-Nyquist uniform sampling, then reduced sampling rate leads to reduced computational and power requirements. It is particularly suitable in applications such as estimation of wideband channels, precise position location and ranging.

关 键 词：超宽带 信道估计 算法 Nyquist采样率 

分 类 号：TN925[电子电信—通信与信息系统]