期刊文献+

TDS-OFDM系统信道估计与均衡技术的研究 被引量:5

Research on Channel Estimation and Equalization in TDS-OFDM System
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摘要 提出了一种在没有循环段前缀下使数据循环化的算法,先采用基于PN序列进行时域迭代相关检测方法估计出时域信道响应,再用估出的信道响应对之后的OFDM符号进行循环化重构,从而CP-OFDM的信道均衡方式在此系统下也同样适用。仿真结果表明,结合这两种算法后能使系统在各种多径条件下具备令人满意的性能。 A cyclic restoration algorithm is proposed, firstly estimating the channel impulse response (CIR) with PN-based turbo correlation detection in time domain and then using the equalization techniques to reconstruct the conventional cyclic prefixed OFDM (CP-OFDM) based on this algorithm. Simulation shows that this method can provide satisfactory performance under various multipath channel conditions in TDS-OFDM.
出处 《电视技术》 北大核心 2005年第10期4-7,共4页 Video Engineering
基金 国家自然科学基金项目(编号:60332030) 国家"八六三"项目(编号:2003AA123310)
关键词 信道估计 PN序列 循环化 正交频分复用 时域同步-正交频分复用 channel estimation PN sequence cyclic restoration algorithm OFDM TDS-OFDM
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参考文献7

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共引文献20

同被引文献25

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  • 3郑春燕,归琳,葛建华.TDS-OFDM系统信道估计与数据循环化硬件实现[J].电视技术,2007,31(1):11-13. 被引量:2
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