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无线信道多径时延估计的方法研究
Authors
刘成
张祥斌
段红光
赵栋生
Publication date
1 January 2019
Publisher
《光通信研究》编辑部
Doi
Cite
Abstract
为提高多径条件下无线信道测量中的时延估计精度,结合匹配滤波、方位估计方法(MODE)以及基于加权傅里叶变换和松弛(WRELAX)算法,提出了一种具有额外根的方位估计与基于加权傅里叶变换和松弛法算法的融合(MODEX-WRELAX)算法,并给出了相应的算法推导。新算法既可以分辨多径时延,又能很好地抑制噪声以及强干扰。对新算法进行仿真实验,仿真结果表明,新算法提供了比MODE、WRELAX以及MODE-WRELAX算法更高的精度和分辨率,且新算法可以接近相应的克拉美罗界限(CRB)
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Last time updated on 26/01/2023