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一種利用重復(fù)序列的OFDM頻率同步新方法

嚴(yán)春林 李少謙 唐友喜 羅霄 房家奕

嚴(yán)春林, 李少謙, 唐友喜, 羅霄, 房家奕. 一種利用重復(fù)序列的OFDM頻率同步新方法[J]. 電子與信息學(xué)報(bào), 2005, 27(10): 1647-1650.
引用本文: 嚴(yán)春林, 李少謙, 唐友喜, 羅霄, 房家奕. 一種利用重復(fù)序列的OFDM頻率同步新方法[J]. 電子與信息學(xué)報(bào), 2005, 27(10): 1647-1650.
Yan Chun-lin, Li Shao-qian, Tang You-xi, Luo Xiao, Fang Jia-yi. A New OFDM Frequency Offset Estimation Method Using Repeated Sequences[J]. Journal of Electronics & Information Technology, 2005, 27(10): 1647-1650.
Citation: Yan Chun-lin, Li Shao-qian, Tang You-xi, Luo Xiao, Fang Jia-yi. A New OFDM Frequency Offset Estimation Method Using Repeated Sequences[J]. Journal of Electronics & Information Technology, 2005, 27(10): 1647-1650.

一種利用重復(fù)序列的OFDM頻率同步新方法

A New OFDM Frequency Offset Estimation Method Using Repeated Sequences

  • 摘要: 該文提出了一種利用重復(fù)序列構(gòu)成的訓(xùn)練序列進(jìn)行OFDM頻率同步的新方法。它通過(guò)作兩次頻率同步,先是相隔較近的數(shù)據(jù)作相關(guān),得出頻率偏移值,糾正此頻率偏移后,再間隔較遠(yuǎn)的數(shù)據(jù)作相關(guān),得出較精確的頻率偏移值。新方法有估計(jì)范圍大和精度高的雙重優(yōu)點(diǎn)。AWGN和Rayleigh信道下的仿真驗(yàn)證了算法的有效性。
  • Bingham J A C. Multicarrier modulation for data transmission: an ideawhose time has come [J].IEEE Commun Mag.1990, 28(5):5-14[2]ETS 300 401 Second Edition, Radio broadcasting systems;Digital[3]Audio Broadcasting (DAB) to mobile, portable and fixedreceivers[4][S], 1997.[5]Reimers U. DVB-T: the COFDM-based system for terrestrial television [J].Electronics Communication Engineerig Journal.1997, 9(1):28-32[6]Khun-Jush J, Schramm P, Wachsmann U, Wenger F. Structure and performance of the HIPERLAN/2 physical layer [c]. In Proc. IEEE 49th Vehicular Technology Conf., Amsterdam, The Netherlands, 1999, vol. 5: 2667-2671.[7]Moose P H. A technique for orthogonal frequency division multiplexing frequency offset correction [J].IEEE Trans. on Communications.1994, 42(10):2908-2914[8]Schmidl T M, Cox D C. Robust frequency and timing synchronization for OFDM[J].IEEE Trans. on Commun.1997, 45(12):1613-1621[9]Van de Beek J J, Sandell M, Brjesson P O. ML estimation of timing and frequency offset in OFDM systems [J].IEEE Trans. on Signal Processing.1997, 45(7):1800-1805[10]Tufvesson F, Faulkner M, Edfors O.Time and frequency synchronization for OFDM using PN-sequence preambles[C], Proceedings of IEEE Vehicular Technology Conference, Amsterdam, The Netherlands, September 19-22, 1999: 2203-2207.[11]Chen Biao. Maximum likelihood estimation of OFDM carrier frequency offset [J].IEEE Signal Processing Letters.2002, 9(4):123-126[12]Tureli U. Kivanc D, Liu HExperimental and analytical studies on a high resolution OFDM carrier frequency estimator [J].. IEEE Trans. on Vehicular Technology.2001, 50(2):629-[13]Tureli U, Hui Liu, Zoltowski M D. OFDM blind carrier estimation: ESPRIT [J].IEEE Trans. on Communications.2000, 48(9):1459-1461[14]Lashkarian N, Kiaei S. Class of cyclic-based estimators for frequency-offset estimation of OFDM systems[J]., IEEE Trans. on Communications.2000, 48(12):2139-2149[15]朱光喜, 張青春, 蔡瑋. 一種衰落信道下的OFDM載頻同步跟蹤算法. 華中科技大學(xué)學(xué)報(bào), 2004, 32(1): 56-59.[16]Recommendation ITU R M.1225, Guideline for evaluation of radio transmission technologies for IMT 2000, 1997.
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出版歷程
  • 收稿日期:  2004-04-28
  • 修回日期:  2004-11-03
  • 刊出日期:  2005-10-19

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