| 基于训练序列的TD-SCDMA系统频偏补偿方法 |
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| 引用本文： | 袁圆,郑建宏,王茜竹.基于训练序列的TD-SCDMA系统频偏补偿方法[J].重庆邮电学院学报(自然科学版),2006,18(3):310-312. |
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| 作者姓名： | 袁圆 郑建宏 王茜竹 |
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| 作者单位： | 重庆邮电大学移动通信技术重点实验室,重庆400065 |
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| 基金项目： | 国家“863”计划引导项目（2004AA001390） |
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| 摘 要： | 在TD-SCDMA（UMTS TDD LCR）系统中,数据的可靠检测在很大程度上依赖于准确的载波同步及符号同步.提出了一种新的频偏估计算法,利用TD-SCDMA训练序列的特殊结构,用码片合并的方式估计频偏.仿真结果表明,该算法复杂度低,运算量小,在频率选择性信道环境下,有良好的抗多径和多码道性能.
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| 关 键 词： | midamble训练序列 信道冲击响应 最大似然估计 码片合并 |
| 文章编号： | 1004-5694（2006）03-0310-03 |
| 收稿时间： | 2006-01-21 |
| 修稿时间： | 2006-04-05 |
Frequency offset compensation algorithm using training sequence for TD-SCDMA mobile system |
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| YUAN Yuan, ZHENG Jian-hong, WANG Qian-zhu.Frequency offset compensation algorithm using training sequence for TD-SCDMA mobile system[J].Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition),2006,18(3):310-312. |
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| Authors: | YUAN Yuan ZHENG Jian-hong WANG Qian-zhu |
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| Institution: | Key Lab of Mobile Communication Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, P. R. China |
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| Abstract: | In TD-SCDMA(UMTS TDD LCR) system,credible data measurement highly depends on accurate carrier wave synchronization and symbol synchronization.In this paper,the authors propose a novel frequency offset estimation algorithm,which uses training sequence's especial structure and combine chip to estimate frequency offset.Based on simulation,the conclusion is drawn that computation complexity of the novel algorithm is reduced with favorable performance in frequency selectivity channel. |
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| Keywords: | midamble training sequence channel impulsion response MLE chip combination |
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