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Alpha稳定分布噪声下广义恒模算法收敛性能的研究 被引量：10

Convergence Properties of the GCMA in Alpha-Stable Noise Environment
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摘要 以alpha稳定分布过程为噪声模型,依据分数低阶统计量理论提出了广义恒模算法,分析了广义恒模算法在干扰和加性alpha稳定分布噪声下的收敛特性.研究表明,广义恒模算法的收敛行为由接收信号的初始增益和信干比等条件确定,并由此可以对收敛过程作出预测和控制.利用计算机仿真验证了广义恒模算法的这种特性. This paper introduces alpha-stable distribution as additive noise model and generalizes the constant modulus algorithm（CMA） .An analytic study of the convergence properties of the generalized CMA（GCMA） is presented. It is shown that the convergence behavior can be predicted and controlled by the combination of initial gains and SIR（ Signal Interference Ratio）. The special properties of the GCMA are verified by computer simulations.
作者 唐洪 邱天爽
机构地区 大连理工大学电子与信息工程学院
出处 《电子学报》 EI CAS CSCD 北大核心 2009年第1期118-121,共4页 Acta Electronica Sinica
基金 国家自然科学基金(No.60372081) 辽宁省科学技术基金(No.2001101057)
关键词 ALPHA稳定分布 恒模算法(CMA) 盲波束形成 alpha- stable distribution constant modulus algorithm blind beamforming
分类号 TN911.72 [电子电信—通信与信息系统]
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参考文献8

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同被引文献111

  • 1孙永梅,邱天爽.脉冲噪声环境下的自适应时间延迟估计新方法[J].电子与信息学报,2005,27(5):740-744. 被引量：3
  • 2Li Jian, Wu Renbiao. An efficient algorithm for time delay estimation [J]. IEEE Transactions on Signal Processing, 1998,46(8) : 2231-2235.
  • 3Su Zhigang, Wu Renbiao. Delay and Doppler scale estimation of multiple moving targets via DS-WRELAX[J]. Electronics Letters, 2000,36(9) : 827-828.
  • 4Yi Min, Wei Ping, Xiao Xianci, et al. Efficient EM initialisation method for time delay estimation [J]. Electronics Letters, 2003,39(12) : 935-936.
  • 5黎云英.微弱多径信号时延估计技术研究[D].武汉:华中科技大学,2008.
  • 6Ge Fengxiang, Shen Dongxu, Peng Yingning, et al. Super-resolution time delay estimation in multipath environments[C]//IEEE Wireless Communications and Networking Conference. Atlanta, GA, USA: IEEE, 2004: 1121-1126.
  • 7Van der Veen A J, Vanderveen M C, Paulraj A. Joint angle and delay estimation using shift-invariante techniques[J]. IEEE Transactions on Signal Processing, 1998,46(2):405-418.
  • 8Nikias C L, Shao Min. Signal Processing with Alpha-stable Distributions and applications[M]. New York, NY, USA: John Wiley & Sons Inc, 1995.
  • 9Ma X Y. Robust signal processing in impulsive noise with stable distributions: estimation, identification and equalization[D]. Los Angeles: Universi ty of Southern California, 1996.
  • 10Vaseghi S V. Advanced digital signal processing and noise reduction [M]. United Kingdom: John Wiley & Sons, Inc. , 2008.

引证文献10

二级引证文献30

电子学报
2009年 第1期

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