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基于四阶累积量张量联合对角化的多数据集联合盲源分离

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Indexed by:Journal Papers

Date of Publication:2019-01-01

Journal:电子与信息学报

Included Journals:PKU

Volume:41

Issue:3

Page Number:509-515

ISSN No.:1009-5896

Key Words:联合盲源分离 联合张量对角化 4阶累积量

Abstract:该文提出一种基于四阶累积量张量联合对角化的联合盲源分离(J-BSS)算法.首先通过计算4阶互累积量将多数据集信号的J-BSS问题转化为4阶张量联合对角化问题.接下来,基于雅可比连续旋转将张量联合对角化这类非线性优化问题,转化为一系列可获取闭式解的简单子优化问题,并通过交替迭代对多数据集混合矩阵进行更新,进而实现J-BSS.实验结果表明,所提算法具有良好的收敛性能,较之现有的同类型BSS及J-BSS算法具有更高的精度.此外,该算法在分离实际胎儿心电信号方面也表现出良好的性能.

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