| 基于接收信号自相关矩阵匹配的UWB信道盲估计 |
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| 引用本文： | 赵翔,朱行涛,刘郁林.基于接收信号自相关矩阵匹配的UWB信道盲估计[J].云南大学学报(自然科学版),2008,30(3):246-250. |
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| 作者姓名： | 赵翔 朱行涛 刘郁林 |
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| 作者单位： | 重庆通信学院DSP实验室,重庆,400035 |
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| 摘 要： | 针对TH-PPM调制的超宽带系统,把超宽带系统发射信号的非线性形式转换为线性形式,并推导出接收信号自相关矩阵和信道响应之间关系式,提出一种基于接收信号自相关矩阵匹配的超宽带信道盲估计算法,获得了较好的均方误差性能.当把估计出的信道参数用于接收机设计时,还可以获得较好的误比特率性能,其误比特率比理想信道的误比特率率约1.5 dB.
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| 关 键 词： | 超宽带 二阶统计量 TH-PPM 盲信道估计 |
| 文章编号： | 0258-7971(2008)03-0246-05 |
| 修稿时间： | 2007年4月2日 |
Blind channel estimation for UWB systems based on receive signal's autocorrelation matrix matching |
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| ZHAO Xiang,ZHU Xing-tao,LIU Yu-lin.Blind channel estimation for UWB systems based on receive signal''''s autocorrelation matrix matching[J].Journal of Yunnan University(Natural Sciences),2008,30(3):246-250. |
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| Authors: | ZHAO Xiang ZHU Xing-tao LIU Yu-lin |
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| Institution: | DSP Lab, Chongqing Communication College, Chongqing 400035, China |
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| Abstract: | A novel blind channel estimation algorithm is proposed for TH-PPM Ultra Wide-Band communications.Firstly,transformed the nonlinear form of the transmit signal into the linear form.Secondly,deduced the relation between the receive signal’s autocorrelation matrix and the channel response,and then proposed a blind channel estimation algorithm based on receive signal’s autocorrelation matrix matching.This algorithm can acquire comparatively good MSE performance.When using the estimated channel parameters to design the receiver,relatively good BER performance can be gained,only 1.5dB large than the BER of ideal channel. |
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| Keywords: | Ultra Wide-Band second-order statistics TH-PPM blind channel estimate |
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