| 基于边带最大化准则的频偏与定时联合盲估计方法 |
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| 引用本文： | 邵世才,许小东,路友荣,戴旭初,徐佩霞.基于边带最大化准则的频偏与定时联合盲估计方法[J].兵工学报,2009,30(1):36-42. |
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| 作者姓名： | 邵世才 许小东 路友荣 戴旭初 徐佩霞 |
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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;西南电子电信技术研究所,四川,成都,610041 |
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| 摘 要： | 基于边带最大化准则，提出了一种频偏与定时联合盲估计方法。深入分析了频偏对边带定时算法的性能影响，将边带定时算法与基于迭代实现的共轭自相关频偏估计算法有机融合，实现了大频偏条件下频偏和定时的联合盲估计。理论分析和计算机仿真结果表明，该方法不需要信号调制方式、多径衰落信道等先验信息，且具有收敛速度快、计算复杂度小等特点。
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| 关 键 词： | 通信技术 边带最大化 盲估计 频偏估计 符号定时 |
Blind Estimation of Frequency Offset and Symbol Timing Based on Band-edge Component Maximization |
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| SHAO Shi-cai,XU Xiao-dong,LU You-rong,DAI Xu-chu,XU Pei-xia.Blind Estimation of Frequency Offset and Symbol Timing Based on Band-edge Component Maximization[J].Acta Armamentarii,2009,30(1):36-42. |
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| Authors: | SHAO Shi-cai XU Xiao-dong LU You-rong DAI Xu-chu XU Pei-xia |
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| Affiliation: | 1. Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei 230027， Anhui, China; 2.Southwest Institute of Electronic Telecommunications Technology,Chengdu 610041, Sichuan, China |
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| Abstract: | A new blind estimation algorithm for frequency offset and symbol timing was proposed based on the maximization of the spectrum of the sampled received signal at the band edge.The effect of frequency offset on the performance of the band-edge timing algorithm was analyzed,and then the conjugate autocorrelation based frequency offset estimation algorithm,which is iteratively implemented,was effectively combined with the timing estimation algorithm to realize the joint blind estimation of the frequency offset ... |
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| Keywords: | communication band-edge component maximization blind estimation frequency offset estimation symbol timing |
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