期刊文献+

一种基于子空间的OFDM系统半盲信道估计 被引量:1

Subspace-Based Semi-Blind Channel Estimation for OFDM
下载PDF
导出
摘要 提出了一种可用于色噪声背景的基于子空间的改进半盲信道估计算法。根据正交频分复用(OFDM)系统模型,利用所获色噪声背景的噪声向量与信道冲激响应矩阵的正交性估计信道冲激响应,给出了算法的步骤。仿真结果表明:算法有较好的收敛性和稳定性。 An improved semi-blind channel estimation algorithm based on subspace which was fit to the background of color noise was put forward in this paper.According to the mode of orthogonal frequency division multiplexing system,the impulse response of the channel was estimated using the impulse response character of noise vector acquired with the matrix of the impulse response channel in the color noise environment.The steps of the algorithm were presented.The simulation results showed that the algorithm had good convergence rate and stability.
出处 《上海航天》 2010年第6期32-34,64,共4页 Aerospace Shanghai
关键词 正交频分复用 半盲信道估计 子空间算法 色噪声 Orthogonal frequency division multiplexing Semi-blind channel estimation Subspace method Color noise
  • 相关文献

参考文献4

  • 1CHANG R W.Synthesis of band-limited orthogonal signals for multi-channel data transmission[J].Bell System Technical Journal,1966,46(6):1775-1796.
  • 2ZHOU S,MUQUET B,GIANNAKIS G B.Subspace-based (semi-)blind channel estimation for block precoded spacetime OFDM[J].IEEE Trans Signal Processing,2002,36(8):356-364.
  • 3DOUKPOULOS X G,GEORGE V.Adaptive algorithms for blind channel estimation in OFDM Systems[C] //Communication IEEE International Conference.Paris:IEEE,2004:2377-2381.
  • 4MOULINES E,DUHAMEL P,CARDOSO J F.Subspace methods for the blind identification of multi-channel FIR filters[J].IEEE Trans Signal Processing,1995,43(12):516-525.

同被引文献8

  • 1陈晖,陈晓光,汤晓黎.一种基于直接判决的OFDM快衰落信道估计新方法[J].信息与电子工程,2006,4(1):30-34. 被引量:2
  • 2兰海燕,赵旦峰.基于子空间的OFDM系统半盲信道估计研究[J].应用科技,2007,34(1):17-20. 被引量:2
  • 3Ho C K, Farhang-Boroujeny B, Chin F. Added pilot semi-blind channel estimation scheme for OFDM in fading channels[C]// Proceedings of the 2001 Global Telecommunications Conference. 2001,5:3075-3079.
  • 4Doukopoulos X G, Moustakides G V. Adaptive algorithms for blind channel estimation in OFDM systems[C]// Proceedings of the 2004 IEEE International Conference on Communication. 2004.
  • 5Moulines E, Duhamel P, Cardoso J F, et al. Subspace methods for the blind identification of multichannel FIR filters[J].IEEE Transactions on Signal Processing, 1995,43(2):516-525.
  • 6Li Ye, Seshadri N, Ariyavisitakul S. Channel estimation for OFDM systems with transmitter diversity in mobile wireless channels[J].IEEE Journal on Selected Areas in Communications, 1999,17(3):461-471.
  • 7Farhang-Boroujeny B. Pilot-based channel identification: Proposal for semi-blind identification of communication channels[J].Electronics Letters, 1995,31(13):1044-1046.
  • 8Bar-Shalom Y, Li Xiao-Rong. Estimation and Tracking: Principle, Technique and Software[M].Artech House, 1993.

引证文献1

二级引证文献1

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部