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单通道带通信号的复基带盲解卷积算法

鄢社锋 马远良

鄢社锋, 马远良. 单通道带通信号的复基带盲解卷积算法[J]. 电子与信息学报, 2004, 26(5): 702-708.
引用本文: 鄢社锋, 马远良. 单通道带通信号的复基带盲解卷积算法[J]. 电子与信息学报, 2004, 26(5): 702-708.
Yah She-feng, Ma Yuan-liang. Complex Baseband Blind Deconvolution of Single Band-Pass Input[J]. Journal of Electronics & Information Technology, 2004, 26(5): 702-708.
Citation: Yah She-feng, Ma Yuan-liang. Complex Baseband Blind Deconvolution of Single Band-Pass Input[J]. Journal of Electronics & Information Technology, 2004, 26(5): 702-708.

单通道带通信号的复基带盲解卷积算法

Complex Baseband Blind Deconvolution of Single Band-Pass Input

  • 摘要: 该文提出了一种基于多途信道单通道接收的带通数据(波束或传感器输出)自相关函数的盲解卷积算法。该算法先通过复解调将带通信号频谱搬移到0频率附近,然后进行低通滤波和降采样率,得到其复基带信号。再针对单通道复基带信号,以其自相关函数在零延时之外某区间内的实部平方和最小为准则,推导出复基带多途信号盲解卷积的LMS自适应迭代算法。该方法能够适用于带通高斯信号和非高斯信号,与基于高阶统计量的方法相比,对源信号概率分布具有较宽的适用面,计算机仿真结果验证了该方法的正确性。
  • Bell A J, Sejnowski T J. An information maximization approach to blind separation and blind deconvolution[J].Neural Computation.1995, 7(6):1129-1159[2]Mo Shaomin, Shafai B. Blind equalization using higher order cumulants and neural network.IEEE Trans. on Signal Processing, 1994, SP-42(1i): 3209-3217.[3]Alkulaibi A, Soraghan J J. Hybrid higher-order cepstrum and functional link network-based blind equalizer[J].Signal Processing.1997, 62(1):101-109[4]Porat B, Friedlander B. Blind equalization of digital communication channels using high-order moments. IEEE Trans. on Signal Processing, 1991, SP-39(2): 522-526.[5]Zheng F C, McLaughlin S, Mulgrew B. Blind equalization of nonminimum phase channels: higher order cumulant based algorithm. IEEE Trans. on Signal Processing, 1993, SP-41(2): 681-691.[6]Feng Chih-Chun, Chi Chong-Yung. Performance of cumulant based inverse filters for blind deconvolution. IEEE Trans. on Signal Processing, 1999, SP-47(7): 1922-1935.[7]Haykin S. Adaptive Filter Theory, Third Edition, New Jersey: Prentice-Hall, 1996: 772-816.[8]Fiori S, Uncini A, Piazza F. Blind deconvolution by modified Bussgang algorithm. In Proc. of International Symposium on Circuits and Systems, Orlando, FL, USA, 1999, Vol.Ⅲ: 1-4.[9]Yan Shefeng, Ma Yuanliang. Blind deconvolution for SISO FIR channel based on autocorrelation function[J].In Proc. of IEEE Int Conf. Neural Networks Signal Processing, Nanjing, China.2003, Vol.2:1413-1416
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出版历程
  • 收稿日期:  2002-12-09
  • 修回日期:  2003-05-19
  • 刊出日期:  2004-05-19

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