| OFDM系统中基于PN序列的迭代相关检测信道估计 |
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| 引用本文： | 陈洁君,侯晓赟,罗汉文,葛建华.OFDM系统中基于PN序列的迭代相关检测信道估计[J].电视技术,2004(8):12-13,23. |
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| 作者姓名： | 陈洁君 侯晓赟 罗汉文 葛建华 |
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| 作者单位： | 上海交通大学,电子工程系,上海,200030 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，国家自然科学基金 |
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| 摘 要： | 提出了一种基于PN序列进行时域迭代相关检测的信道估计算法,在典型信道下,采用该算法后系统的误码率性能优于传统的频域导频系统.PN序列还可以用于多用户检测、频偏估计和定时同步,因而OFDM系统中使用PN序列的帧结构可以减少系统资源开销,提高频谱利用率.
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| 关 键 词： | 正交频分复用 PN序列 信道估计 |
| 文章编号： | 1002-8692(2004)08-0012-02 |
Channel Estimation with PN-based Turbo Correlation Detection in OFDM System |
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| CHEN Jie-jun,HOU Xiao-yun,LUO Han-wen,GE Jian-hua.Channel Estimation with PN-based Turbo Correlation Detection in OFDM System[J].Tv Engineering,2004(8):12-13,23. |
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| Authors: | CHEN Jie-jun HOU Xiao-yun LUO Han-wen GE Jian-hua |
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| Abstract: | This paper proposes a channel estimation algorithm with PN-based turbo correlation detection in time domain. In typical channels, the algorithm has higher performance than that with pilot in frequency domain. Moreover PN sequence can also be used in multi-user detection, frequency offset estimation and timing correction. Therefore the frame structure with PN sequence in OFDM system can reduce system overhead and improve spectrum efficiency. |
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| Keywords: | OFDM PN sequence channel estimation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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