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DVB-T系统中时偏估计算法及实现

Timing Offset Estimation Algorithm and Design in DVB-T System
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摘要 介绍了DVB-T系统中的同步技术,分析了基于分散导频的精同步技术,提出了一种基于连续和分数导频的联合时偏估计算法并给出了实现方案。仿真结果表明,新算法具有更高的定时精度。 The symbol synchronization technology in DVB-T system is introduced. The precise synchronization technology based on scatter pilot is analyzed. The proposed design scheme of combined timing offset estimation algorithm is based on the combination of continual and scatter pilot. Simulation results show that the new algorithm has higher timing precision.
作者 万超 申敏
机构地区 重庆邮电大学
出处 《电视技术》 北大核心 2007年第10期13-15,共3页 Video Engineering
基金 国家"863"引导项目(2004AA001390) 国家"火炬"计划项目(2006GH011409)
关键词 DVB—T系统 符号同步 分散导频 连续导频 DVB-T system symbol synchronization scatter pilot continual pilot
分类号 TN945 [电子电信—信号与信息处理]
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参考文献5

  • 1王锋,郑建宏.DVB-T系统的频偏估计算法研究[J].广东通信技术,2007,27(2):66-69. 被引量：1
  • 2VAN DE BEEK J J, SANDELL M, BORJESSON P. ML estimation of time and frequency offset in OFDM systems[J]. IEEE Trans. Signal Processing, 1997,45(7):1800-1805.
  • 3SCHMIDL T M, COX D C. Robust frequency and timing synchronization for OFDM[J]. IEEE Trans. Communications, 1997,45(12):1613- 1621.
  • 4ECHAVARRI J, WOODWARD M E, BARTON S K. A comparison of time and frequency synchronization algorithms for the European DVB-T system[C]//Proc, of IEEE VTC 50th:vol.2.[S.1.]:IEEE Press, 1999:678-682.
  • 5SCHMIDL T M, COX D C. Robust frequency and timing synchronization for OFDM[J]. IEEE Trans. Communications, 1997,45(12):1613-1621.

二级参考文献6

  • 1J. A. C. Bingham, Multicarrier modulation for data transmission: an idea whose time has come, IEEE Commun.Mag, vol. 28, pp. 5-14, May 1990.
  • 2Moose, P H. Atechnique for orthogonal frequency division multiplexing frequency offset correction.Communications, IEEE Transactions on, 1994,42(10): 908-2914.
  • 3J. J. van de Beek, M. Sandell, and P. Borjesson, ML estimation of time and offset in OFDM IEEE Trans.frequency systems, Signals. vol. 1997.Processing, 45, pp1800-1805, July
  • 4ETSI, Digital video broadcasting(DVB); framing structure,channel coding and modulation for digital terrestrial television. EN 300 744, V1.4.1,2001.
  • 5Dong-Seog Han,Jae-Hyun Seo and Jung-Jin Kin,Fast Carrier Frequency Offset Compensation in OFDM Systems, IEEE Transactions on Consumer Electronics, Vol. 47, No. 3, August 2001.
  • 6J-J van de Beek, M Sandell, and P O Brjesson, ML estimation of timing and frequency offset in OFDM systems[J]. IEEE Trans. Signal Processing, 1997,45(7): 1800 - 1805
电视技术
2007年 第10期

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