| TH-UWB系统中ML信道估计算法研究 |
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| 引用本文： | 齐丽娜,朱洪波. TH-UWB系统中ML信道估计算法研究[J]. 中国电子科学研究院学报, 2007, 2(1): 47-51 |
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| 作者姓名： | 齐丽娜 朱洪波 |
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| 作者单位： | 南京邮电大学,通信与信息工程学院,南京,210003;南京邮电大学,通信与信息工程学院,南京,210003 |
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| 基金项目： | 国家自然科学基金 , 高等学校博士学科点专项科研项目 |
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| 摘 要： | 跳时超宽带无线通信系统中信道估计的准确度对系统接收性能具有重要影响,首先对超宽带系统收发模型进行介绍,然后对TH-UWB系统中基于训练序列的非结构化最大似然信道估计算法进行分析,最后在超宽带信道模型下对估计算法性能进行仿真.仿真结果表明基于训练序列的非结构化最大似然信道估计算法能够有效估计出信道参数.
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| 关 键 词： | 跳时超宽带 RAKE接收机 信道估计 最大似然准则 |
| 文章编号： | 1673-5692（2007）01-047-05 |
| 修稿时间： | 2007-01-072007-02-10 |
Study of ML Algorithm for Channel Estimation in TH-UWB Systems |
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| QI Li-na,ZHU Hong-bo. Study of ML Algorithm for Channel Estimation in TH-UWB Systems[J]. Journal of China Academy of Electronics and Information Technology, 2007, 2(1): 47-51 |
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| Authors: | QI Li-na ZHU Hong-bo |
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| Affiliation: | College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China |
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| Abstract: | The channel estimation is essential to TH-UWB system. In this paper,the system model is presented,then the unstructured maximum likelihood channel estimation algorithm based on training sequence is produced,and finally the simulation tests are given over IEEE 802.15.3a channel model.The simulation results show that the proposed algorithm is effective for TH-UWB system. |
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| Keywords: | timing hopping ultra wide band RAKE receiver channel estimation(CE) maximum likelihood(ML) criterion |
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