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OFDM系统中基于导频的时变信道估计

胡蝶 杨绿溪

胡蝶, 杨绿溪. OFDM系统中基于导频的时变信道估计[J]. 电子与信息学报, 2004, 26(9): 1376-1382.
引用本文: 胡蝶, 杨绿溪. OFDM系统中基于导频的时变信道估计[J]. 电子与信息学报, 2004, 26(9): 1376-1382.
Hu Die, Yang Lu-xi. Time-Varying Channel Estimation Based on Pilot Tones in OFDM Systems[J]. Journal of Electronics & Information Technology, 2004, 26(9): 1376-1382.
Citation: Hu Die, Yang Lu-xi. Time-Varying Channel Estimation Based on Pilot Tones in OFDM Systems[J]. Journal of Electronics & Information Technology, 2004, 26(9): 1376-1382.

OFDM系统中基于导频的时变信道估计

Time-Varying Channel Estimation Based on Pilot Tones in OFDM Systems

  • 摘要: 该文对OFDM系统中基于导频的时变信道估计进行了研究,采用分组导频对一个OFDM符号间隔内某些时刻的信道冲击响应值进行估计,提出一种利用低通插值估计一个符号间隔内其他时刻的信道值的方法。仿真结果表明该文采用的低通插值方法所得到的估计均方误差要小于用线性插值或直接用信道模型产生的系数进行插值所得到的估计均方误差。
  • Cimini L J, Jr. Analysis and simulation of a digital mobile channel using orthogonal frequencydivision multiplexing. IEEE Trans. on Comm., 1985, COM-33(7): 665-675. [2]Mignone V, Morello A. CD3-OFDM: A novel demodulation scheme for fixed and mobile receivers.IEEE Trans. on Comm., 1996, COM-44(9): 1144-1151. [3]Coleri S, Ergen M, Puri A, Bahai A. Channel estimation techniques based on pilot arrangement in OFDM systems. IEEE Trans. on Broadcasting, 2002, 48(3): 223-229. [4]van de Beek J J, Edfors O, Sandell M, Wilson S K, Borjesson P O. On channel estimation in OFDM systems. Proc. of VTC 95, Chicago, Illinois, 1995: 815-819. [5]Edfors O, Sandell M, van de Beek J J, Wilson S K, Borjesson P O. OFDM channel estimation by singular value decomposition. IEEE Trans. on Comm., 1998, COM-46(7): 931-939. [6]Li Y G, Cimini L J, Jr., Sollenberger N R. Robust channel estimation for OFDM systems with rapid dispersive fading channels. IEEE Trans. on Comm., 1998, COM-46(7): 902-915. [7]Stamoulis A, Diggavi S N, Al-Dhahir N. Intercarrier interference in MIMO OFDM. IEEE Trans.on Signal Processing, 2002, SP-50(10): 2451-2464. [8]Negi R, Cioffi J. Pilot tone selection for channel estimation in a mobile OFDM system. IEEE Trans. on Consum. Electron., 1998, 44(3): 1122-1128.
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出版历程
  • 收稿日期:  2003-06-03
  • 修回日期:  2003-09-26
  • 刊出日期:  2004-09-19

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