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基于EEMD的地声信号单通道盲源分离算法

DOI: doi:10.3969/j.issn.1006-7043.2011.02.011

Keywords: 盲源分离, 单通道, 总体经验模态分解, 地声信号处理

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Abstract:

针对只有一个观测通道时,基于矩阵运算的盲源分离算法将会失效的问题,提出一种适用于单观测通道的地声信号盲源分离方法.首先采用总体经验模态分解方法将观测信号分解为固有模态矩阵,使单通道的欠定问题转化为多通道的正定问题,再利用已有的盲源分离算法进行分离.仿真实验说明该方法可以抑制宽频及瞬态干扰,有效地提取源信号,而且对频带有交叠的信号也有一定的分离效果.实验数据处理显示该方法可以在地声环境噪声干扰下,有效地提高目标信号的信噪比,增加检测性能,证明了该方法在地声信号处理中的有效性.

References

[1]  倪晋平,马远良,孙超.用独立成份分析算法实现水声信号盲分离[J].声学学报,2002, 27(4):321-326. ?NI Jinping, MA Yuanliang, SUN Chao. Blind separation of underwater acoustic signals via independent component analysis algorithms[J].Acta Acustica, 2002,27(4):321-326.?
[2]  MOLLA M d. K I, HIROSE K. Single?mixture audio source separation by subspace decomposition of Hilbert spectrum[J]. IEEE Transactions on Audio, Speech, and Language Processing, 2007,15(3): 893-900.?
[3]  MIJOVI′C B, TAELMAN J, GLIGORIJEVI′C I N, et al. Combining empirical mode decomposition with independent component analysis for single?channel signal analysis [J]. IEEE Transactions on Biomedical Engineering,2010,57(9):2188-2196.?
[4]  WU Z H , HUANG N E. Ensemble empirical mode decomposition: a noise?assisted data analysis method [J]. Advances in Adaptive Data Analysis, Theory and Applications,2009, 1(1):1-41.?
[5]  CARDOSO J F. Blind beam forming for non?Gaussian signals [J]. IEEE Proceedings, Part F: Radar and Signal Processing, 1993,140(6):362-370.?
[6]  单志超,林春生,向前.基于二阶非平稳统计量的船舶噪声信号的盲分离[J].信号处理,2009,25(6):973-976. ?SHAN Zhichao, LIN Chunsheng, XIANG Qian.The separation of ship noise signal based on second order nonstationary statistic[J]. Signal Processing,2009,25(6):973-976. ?
[7]  姜卫东,陆佶人,张宏滔.基于单个频点的水声信号盲源分离[J].电子与信息学报,2005,27(4):532-535. ?JIANG Weidong, LU Jiren, ZHANG Hongtao. Blind source separation of underwater signals using single frequency bin[J].Journal of Electronics & Information Technology,2005,27(4):532-535.?
[8]  张安清,邱天爽,章新华.扩展联合对角化法的水声信号盲分离技术[J].系统工程与电子技术,2003;25(9):1058-1060,1083. ?ZHANG Anqing, QIU Tianshuang, ZHANG Xinhua. Blind separation technique for multipath underwater acoustic signals based on extended joint diagonalization method[J].Systems Engineering and Electronics,2003,25(9):1058-1060,1083.?
[9]  JANG G J,LEE T W.Single?channel signal separation using time?domain basis functions[J]. IEEE Signal Processing Letters,2003,10(6):168-171.?
[10]  DAVIES M E,JAMES C J.Source separation using single channel ICA[J].Signal Processing,2007,87(8):1819-1832. ?
[11]  WARNER E S, PROUDLER I K.Single?channel blind signal separation of filtered MPSK signals[J]. IEEE Processings: Radar,Sonar and Navigation,2003,150(6):396-402.?

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