| 超宽带时变移动信道下的尺度-时延分集接收 |
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| 引用本文： | 叶扬,刘发林.超宽带时变移动信道下的尺度-时延分集接收[J].中国科学技术大学学报,2007,37(2):113-118. |
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| 作者姓名： | 叶扬 刘发林 |
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| 作者单位： | 中国科学技术大学电子工程与信息科学系,安徽合肥,230027 |
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| 摘 要： | 针对宽带多径时变信道,特别是一定移动速度下的移动通信中产生的多普勒频移问题,在分析窄带时变信道和宽带时变信道的相似性基础上,给出尺度-时延分集接收的基本原理和尺度-时延Rake接收机的实现方法.分析表明,在宽带时变信道下,相对传统时延Rake接收机能够产生较大的分集增益.
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| 关 键 词： | 超宽带 宽带时变信道 宽带多普勒效应 尺度-时延分集 |
| 文章编号： | 0253-2778(2007)02-0113-06 |
| 修稿时间： | 03 15 2006 12:00AM |
The scale-delay diversity reception based on the UWB time-variant mobile channel |
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| YE Yang,LIU Fa-lin.The scale-delay diversity reception based on the UWB time-variant mobile channel[J].Journal of University of Science and Technology of China,2007,37(2):113-118. |
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| Authors: | YE Yang LIU Fa-lin |
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| Institution: | Department of Electronic Engineering and Information Science, USTC , Hefei , 230027, China |
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| Abstract: | Aiming at the Doppler problem caused by high speed mobility in wideband multipath time-variant channels,the similarity of narrowband and wideband time-variant channels and the scale-delay diversity principles were analyzed.Then,the scale-delay Rake receiver implementations was given.The performance results show that the scale-delay Rake exploits greater diversity than the traditional delay only Rake receiver in the wideband time-variant channel. |
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| Keywords: | UWB(ultra wide band) wideband time-variant channel wideband Doppler effect scale-delay diversity |
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