| 接收分集OFDM通信系统的盲信道估计 |
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| 引用本文： | 侯伟昆,叶梧,冯穗力. 接收分集OFDM通信系统的盲信道估计[J]. 系统工程与电子技术, 2008, 30(11) |
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| 作者姓名： | 侯伟昆 叶梧 冯穗力 |
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| 作者单位： | 华南理工大学电子与信息学院,广东,广州,510640 |
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| 基金项目： | 粤港关键领域重点突破项目，广东省自然科学基金(06300097)资助课题 |
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| 摘 要： | 提出一种新的利用接收分集技术的OFDM通信系统盲信道估计方法.所提出的算法根据单入多出系统模型,可直接在一个接收数据块内估计出各个接收分支所对应的多径信道,且不要求接收信号的二阶统计量等相关统计信息.由于采用频域相除抵消技术,各分支的信道参数可分离估计,因此降低了计算复杂度.仿真分析表明该算法的有效性.
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| 关 键 词： | 正交频分复用 接收分集 盲信道辨识 冲击响应 频率响应 |
Blind channel estimation for OFDM systems with receive diversity |
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| HOU Wei-kun,YE Wu,FENG Sui-li. Blind channel estimation for OFDM systems with receive diversity[J]. System Engineering and Electronics, 2008, 30(11) |
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| Authors: | HOU Wei-kun YE Wu FENG Sui-li |
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| Abstract: | A new blind channel estimation technique is proposed for OFDM systems by exploiting receive diversity.Based on the single input multi-output system model,the proposed method uses only one OFDM data block to estimate the channel of each branch,and it does not require the second-order statistics(SOS) knowledge.Due to the use of frequency domain symbol division,it decouples the estimation of impulse response for each receive antenna branch,hence releases the computational burden.Simulation results show the effectiveness of the proposed method. |
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| Keywords: | orthogonal frequency division multiplex receive diversity blind channel identification impulse response frequency response |
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