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具有非奇异约束的线性卷积混合信号盲分离联合对角化方法

DOI: 10.13195/j.kzyjc.2012.1826, PP. 541-545

Keywords: 盲源分离,联合对角化,卷积混合信号,约束优化

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Abstract:

联合对角化能够成功解决盲分离问题,但在求解时会得到非期望的奇异解,从而无法完全分离出源信号.鉴于此,提出一种用于线性卷积混合盲分离的联合对角化方法,将卷积混合模型变换为瞬时模型,并对变换后的模型应用联合对角化求取分离矩阵.在求解过程中,引入约束条件对解的范围进行限定,避免了奇异解的出现.仿真结果表明,所提出的方法能够成功实现卷积混合信号盲分离.

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