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一种超宽带信道估计算法及其特性 被引量:1

Characteristics Research on a Channel Estimation Algorithm in Ultra-Wide Band System
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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.
作者 肖尚辉 江毅
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)
关键词 超宽带 信道估计 算法 Nyquist采样率 UWB CE algorithm Nyquist sampling rate
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参考文献8

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二级参考文献13

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共引文献10

同被引文献9

  • 1肖尚辉,江毅.基于最优化方法的超宽带通信信号设计[J].重庆邮电学院学报(自然科学版),2005,17(5):562-565. 被引量:3
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  • 9Stoica, P. , A. Nehomi. MUSIC, Maximum Likelihood and Cramer-Rao Bound[J]. IEEE Trans. On Acoustics, Speech and Signal Processing, 1989, 37(5) :720-741.

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