| 基于ESPRIT法的UWB系统同步与信道联合估计 |
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| 引用本文： | 梁剑,陈芳炯,韦岗.基于ESPRIT法的UWB系统同步与信道联合估计[J].科学技术与工程,2008,8(1):62-65. |
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| 作者姓名： | 梁剑 陈芳炯 韦岗 |
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| 作者单位： | 华南理工大学电子与信息学院,广州,510640 |
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| 摘 要： | 提出基于ESPRIT算法的超宽带系统同步-信道联合估计算法.首先对接收信号进行傅立叶变换,由傅立叶变换结果计算自相关函数,基于自相关函数的信号子空间构造矩阵束,把同步、多径时延估计转化成矩阵束的特征值求解问题.求解出时延后再进一步求解信道参数.
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| 关 键 词： | 超宽带 同步 信道估计 |
| 文章编号： | 1671-1819(2008)1-0062-04 |
| 收稿时间： | 2007-09-07 |
| 修稿时间： | 2007年9月7日 |
ESPRIT Based Alglrithm for Joint Synchronous and Channel Estimation in UWB Systems |
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| LIAN Jiang,CHEN Fang-jiong,WEI Gang.ESPRIT Based Alglrithm for Joint Synchronous and Channel Estimation in UWB Systems[J].Science Technology and Engineering,2008,8(1):62-65. |
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| Authors: | LIAN Jiang CHEN Fang-jiong WEI Gang |
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| Abstract: | An ESPRIT based algorithm is proposed for the joint synchronous and channel estimation of Ultra-Wide Band(UWB)systems.The discrete Fourier transform is firstly applied to the received data and then the auto-correlation matrix is estimated based on the Fourier coefficients.A matrix pencil is built from the signal subspace of the auto-correlation matrix and the generalized eigenvalues of the matrix pencil provide the estimates of the multipath delays.After the delays are estimated,the multipath gains can be estimated by solving a group of linear equations. |
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| Keywords: | ultra-wide band synchronous channel estimation |
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