A robust approach to the permutation problem of frequency-domain blind source separation
A robust approach to the permutation problem of frequency-domain blind source separation
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DOI：
10.1109/icassp.2003.1199969
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发表时间：
2003-04
期刊：
影响因子：
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通讯作者：
H. Sawada;R. Mukai;S. Araki;S. Makino
中科院分区：
文献类型：
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作者：
H. Sawada;R. Mukai;S. Araki;S. Makino
针对频域盲源分离中的置换问题，提出了一种鲁棒、精确的求解方法。它是基于两个以前的方法：到达方向估计方法和频率间相关方法。我们讨论了这两种方法的优点和缺点，并将它们结合起来，发挥两者的优势。本文还提出了一个计算零方向的封闭公式，用于估计源信号的方向。实验结果表明，该方法几乎完美地解决了在混响时间为300 ms的房间中混合两个声源的情况下的排列问题。
This paper presents a robust and precise method for solving the permutation problem of frequency-domain blind source separation. It is based on two previous approaches: the direction of arrival estimation approach and the inter-frequency correlation approach. We discuss the advantages and disadvantages of the two approaches, and integrate them to exploit the both advantages. We also present a closed form formula to calculate a null direction, which is used in estimating the directions of source signals. Experimental results show that our method solved permutation problems almost perfectly for a situation that two sources were mixed in a room whose reverberation time was 300 ms.