| 一种新的非瑞利信道的多普勒估计算法 |
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| 引用本文： | 高原,陈伟,龙必起. 一种新的非瑞利信道的多普勒估计算法[J]. 电视技术, 2008, 32(11) |
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| 作者姓名： | 高原 陈伟 龙必起 |
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| 作者单位： | 武汉理工大学,信息工程学院,湖北,武汉,430070;武汉理工大学,信息工程学院,湖北,武汉,430070;武汉理工大学,信息工程学院,湖北,武汉,430070 |
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| 摘 要： | 针对多径信道中非瑞利环境,提出了基于信道冲激响应相位信息进行多普勒估计的方法.提出了局部最大径的找径方法和径的轨迹跟踪方法,分析了估计误差并提出减小误差的误差修正因子配置方法,使得算法估计更准确、估计精度不受信噪比影响.
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| 关 键 词： | 多普勒频率 相位变化 非瑞利信道 |
New Algorithm for Non-rayliegh Channel Doppler Estimation |
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| GAO Yuan,CHEN Wei,LONG Bi-qi. New Algorithm for Non-rayliegh Channel Doppler Estimation[J]. Ideo Engineering, 2008, 32(11) |
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| Authors: | GAO Yuan CHEN Wei LONG Bi-qi |
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| Affiliation: | GAO Yuan,CHEN Wei,LONG Bi-qi(School of Information Engineering,Wuhan University of Technology,Wuhan 430070,China) |
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| Abstract: | In allusion to non-rayleigh muti-path channel,a new algorithm based on the phase information of channel impulse response is presented in this paper.Methods of partial maximal path,path tracing are presented,and estimation error is analyzed.And then,the error correcting modified method is presented.And thus,the estimation precision is improved and not influenced by SNR. |
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| Keywords: | doppler frequency phase-varying non-rayleigh channel |
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