| OFDM系统信道估计算法研究 |
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| 引用本文： | 石慧,卓东风,郑秀萍.OFDM系统信道估计算法研究[J].通信技术,2009,42(12):13-15. |
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| 作者姓名： | 石慧 卓东风 郑秀萍 |
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| 作者单位： | 太原科技大学,电子信息工程学院,山西,太原,030024 |
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| 基金项目： | 山西高校科技研究开发项目基金 |
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| 摘 要： | 在OFDM技术应用于移动通信领域时,其信道估计技术是一项关键技术。分析了级联的一维的信道估计方法,采用加窗的方式改进了基于FFT一维级联信道估计算法,在此基础上提出一种新的基于DCT（EIDCT）变换的信道估计算法。最后给出了改进算法的性能仿真,并对仿真结果进行分析。
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| 关 键 词： | 信道估计 级联 正交频分复用 离散余弦变换 |
Channel Estimation Method for OFDM Systems |
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| SHI Hui,ZHUO Dong-feng,ZHENG Xiu-ping.Channel Estimation Method for OFDM Systems[J].Communications Technology,2009,42(12):13-15. |
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| Authors: | SHI Hui ZHUO Dong-feng ZHENG Xiu-ping |
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| Institution: | (College of Electronic Information and Engineering, Taiyuan University of Science and Technology, Taiyuan Shanxi 030024, China) |
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| Abstract: | Channel estimation for orthogonal frequency division multiplexing（OFDM） systems is very important when it is used in mobile communication field. The cascade one-dimensional channel estimation method is analyzed,and a modified method,by means of windowing and based on DCT（EIDCT）,is proposed. The simulation performance of the modified algorithm is given,and the simulation result of the modified algorithm is also analyzed. All this proves the effectiveness and efficiency of this proposed method. |
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| Keywords: | channel estimation cascade orthogonal frequency division multiplexing discrete cosine transform |
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