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Issue:
Estimation of Propagation Delay in DS-UWB Location System
Author(s):
XU Qiaoyong
,
CHEN Haozuo
,
WANG Zongxin
Pages:
92
-
96
Year:
2004
Issue:
1
Journal:
JOURNAL OF FUDAN UNIVERSITY(NATURAL SCIENCE)
Keyword:
通信技术
;
直接序列扩频-超宽带
;
相关接收机
;
多重信号分类
;
时延
;
Abstract:
用改进后的多重信号分类(MUSIC)方法估计直接序列扩频-超宽带(DS-UWB)系统的时延. 将脉冲处理增益引入UWB系统,并把每个用户的其他多径信号归入噪声子空间处理,以利于对主径信号进行准确的时延估计,同时也改善了MUSIC方法中对用户数的限制. 在UWB室内路径损耗模型下,比较了相关接收机(Correlator)和多重信号分类(MUSIC)2种方法的多用户、主径信号的时延估计结果.
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