| 一种基于导频和循环前缀的信道估计方法 |
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| 引用本文： | 张蕊萍.一种基于导频和循环前缀的信道估计方法[J].兰州铁道学院学报,2006,25(3):81-83,88. |
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| 作者姓名： | 张蕊萍 |
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| 作者单位： | 兰州交通大学信息与电气工程学院 甘肃兰州730070 |
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| 摘 要： | 提出了利用循环前缀对信道进行估计的方法,即在梳状导频模式时,使用导频获得导频子信道频率响应后,对其在频域方向进行插值得到数据子信道响应,在以后没有导频的序列的数据周期内,使用循环前缀对信道进行估计.仿真结果表明:和两个一维的插值方法相比,在不降低系统性能的情况下,改善了系统的实时性能.
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| 关 键 词： | 正交频分复用 循环前缀 信道估计 |
| 文章编号： | 1001-4373（2006）03-0081-03 |
| 收稿时间： | 2005-12-20 |
| 修稿时间： | 2005-12-20 |
A Channel Estimation for PSAM and Cyclic Prefix OFDM Systems |
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| Zhang Ruiping.A Channel Estimation for PSAM and Cyclic Prefix OFDM Systems[J].Journal of Lanzhou Railway University,2006,25(3):81-83,88. |
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| Authors: | Zhang Ruiping |
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| Institution: | School of Information and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China |
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| Abstract: | Channel estimation method based on cyclic prefix is proposed,that is interpolating for the estimated channel frequency response at the pilot subchannel and obtaining the frequency response at data subchannel during pilot frames,and then estimating channel frequency response by cyclic prefix during data frames.Simulation result shows that system performance and reality is improved comparing the two one dimension interpolation method. |
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| Keywords: | OFDM(Orthogonal Frequency Division Modulation) cyclic prefix channel estimation |
| 本文献已被 CNKI 维普 等数据库收录！ |
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