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基于最大似然算法的OFDM系统设计和应用

Application of OFDM System Based on Maximum -Likelihood Algorithm in Wireless Communication System
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摘要 介绍了一个基于最大似然同步和频偏以及信道估计的OFDM系统的设计方案,及其在超短波无线通信系统中的应用。计算机仿真表明,最大似然算法进行同步和信道估计,使OFDM系统具有较好的抗符号间干扰的性能,且该算法对系统的设计要求不高,易于工程实现。 This paper presents a OFDM system scheme based on maximum -likelihood algorithm for UHF wireless communication system. The simulation results indicate that the maximum -likelihood algorithm for synchronization and channel estimation is easy for engineering application and make the OFDM system capable of rudecing the influence of ISI.
出处 《通信技术》 2007年第6期6-8,共3页 Communications Technology
关键词 正交频分复用 正交幅度调制 最大似然算法 orthogonal frequency division multiplexing quadrature amplitude modulation maximum–likelihood algorithms
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参考文献3

  • 1[2]Rappaport T S.Wireless Communication Priciples and Practice[M].New Jersey:Pretentice Hall Press,1996.
  • 2[3]Jae Kyoung Moon,Song In Choi.Performance of channel estimation methords for OFDM systems in a multipath fading channels[J].IEEE Transactions on Consumer Electronics,2000,1(46):161~170.
  • 3[4]Zhao Y,Huang A.A novel channel estimation methords for OFDM mobile communication systems based on pilot signals and transform domain processing[C].Proc.IEEE 47tb Vehicular Technology Conference,USA:Phoenix.1997:2089~2093.

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