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多径衰落下符号定时恢复算法的改进

艾渤 葛建华 赵妍妮

艾渤, 葛建华, 赵妍妮. 多径衰落下符号定时恢复算法的改进[J]. 电子与信息学报, 2004, 26(2): 266-271.
引用本文: 艾渤, 葛建华, 赵妍妮. 多径衰落下符号定时恢复算法的改进[J]. 电子与信息学报, 2004, 26(2): 266-271.
Ai Bo, Ge Jian-hua, Zhao Yan-ni. An Improved Algorithm for Symbol Timing Recovery in a Multipath Fading Channel[J]. Journal of Electronics & Information Technology, 2004, 26(2): 266-271.
Citation: Ai Bo, Ge Jian-hua, Zhao Yan-ni. An Improved Algorithm for Symbol Timing Recovery in a Multipath Fading Channel[J]. Journal of Electronics & Information Technology, 2004, 26(2): 266-271.

多径衰落下符号定时恢复算法的改进

An Improved Algorithm for Symbol Timing Recovery in a Multipath Fading Channel

  • 摘要: 该文提出了在多径衰落信道环境下、宽带数字电视地面广播BDB-T系统中符号定时恢复的改进新算法,导出了计算公式并设计了相应的FPGA硬件电路,计算机仿真及在高清晰度数字电视功能样机上的调试证明了改进算法的优良性能。
  • J.Whitaker著,曹晨、杨作梅等译.高清晰度数字视频原理与应用.北京:电子工业出版社,2002,第1章.[2]Schmidl T M, Cox D C. Robust frequency and timing synchronization for OFDM. IEEE Trans.on Communications, 1997, COM-45(12): 1613-1621.[3]Daffara F.[J].Adami O. A new frequency detector for orthogonal multicarrier transmission techniques. In Proc VTC95, Chicago, Illinois, USA.1995,:-[4]Oh J S, Chung Y M, Lee S U. A carrier synchronization technique for OFDM on the frequencyselective fading environment. In Proc IEEE Vehicular Technology Conference, Atlanta, GA, USA,1996: 1574-1578.[5]Moose P H. A technique for orthogonal frequency division multiplexing frequency offset correction.IEEE Trans. on Communications, 1994, COM-42(10): 2908-2914.[6]Van de Beek J J, Sandell M, Borjesson P O. ML estimation of time and frequency offset in OFDM systems. IEEE Trans. on Signal Processing, 1997, SP-45(7): 1800-1805.[7]Rob H, Cheun K, Park J. An MMSE fine carrier frequency synchronization algorithm for OFDM systems[J].IEEE Trans. on Consumer Electronics.1997, 43(3):761-766[8]Lee D, Cheun K. A new symbol timing recovery algorithm for OFDM systems[J].IEEE Trans. on Consumer Electronics.1997, 43(3):767-775[9]艾渤,刘刚,葛建华.COFDM系统的符号定时同步算法.高技术通讯,2002,12(8):26-31. [10]艾渤,葛建华,赵妍妮.高清晰度数字电视中的符号定时检测算法.华中科技大学学报(自然科学版),2003,31(1)70-74.[10]European Telecommunications Standard Institute, ETS 300 744 Digital video broadcasting; framing structure, channel coding and modulation for digital terrestrial television, France: European Broadcasting Union, 1997.
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出版历程
  • 收稿日期:  2002-09-23
  • 修回日期:  2003-03-28
  • 刊出日期:  2004-02-19

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