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一种用于OFDM系统的频偏估计方案 被引量:1

A method for orthogonal frequency division multiplexing frequency offset correction
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摘要 针对时变多径的移动信道,提出了一种应用于OFDM系统的基于时频域联合导频的频偏估计方案。理论分析给出了该频偏估计方案的估计精度和适用范围,同时仿真验证了该方案无论在高斯信道还是多径衰落信道下都有很好的性能。 A novel carrier frequency offset estimation and correction method was proposed based on a joint time and frequency pilot structure for OFDM systems. Theoretical analysis and simulation results show excellent performance of the frequency offset estimation by the proposed method over wireless multipath channel.
出处 《通信学报》 EI CSCD 北大核心 2004年第12期82-88,共7页 Journal on Communications
基金 国家"863"基金资助项目(2001AA123012)
关键词 正交频分复用 频偏 PN序列 OFDM frequency offset pseudo noise sequence
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参考文献7

  • 1THOMAS K, LORENZO P, PAOLO M, et al. Orthogonal frequency division multiplex synchronization techniques for frequencyselective fading channels[J].IEEE Trans Commun,2001,19(60): 999-1008.
  • 2HSIH H M, WEI C H. A low-complexity frame synchronization and frequency offset compensation scheme for OFDM systems over fading channels[J].IEEE Trans Veh Technol, 1999,48(5): 1596-1609.
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同被引文献5

  • 1W D Warner, C Leung. OFDM/FM Frame Synchronization for Mobile Radio Data Communication. IEEE Trans. Veh.Technol, August 1999, 42: 302~313.
  • 2Jan-Jaap van de Beek, Magnus Sandell. ML estimation of time and frequency offset in OFDM systems. IEEE Trans.Signal Processing, July 2001, 45: 1800~1805.
  • 3Timothy M Schmidl, Donald C Cox. Robust Frequency and Timing Synchronization for OFDM. IEEE Trans. Comm.December 2002, 45: 1613~1621.
  • 4H Minn, M Zeng, V K Bhargava. On Timing Offset Estimation for OFDM Systems. IEEE Commun. Lett., July 2000,4: 242~244.
  • 5赵亚红,李伟华,吴伟陵.正交多载波调制(OFDM)技术及其应用[J].电讯技术,2001,41(1):92-95. 被引量:33

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