A performance index of blind source separation based on improved crosstalk index

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Journal of Vibration and Shock ›› 2012, Vol. 31 ›› Issue (18) : 83-88.

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A performance index of blind source separation based on improved crosstalk index

LI Zong1 FENG Zhing-peng2 CHU Fu-lei1

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Abstract

Crosstalk index, a performance index of blind source separation, can’t give a valid separation evaluation when energies of sources components are different significantly or global matrixes are certain non-row-components dominated matrixes. This article constructed global weight matrix and introduced correlation coefficient to solve these problems, and presented an improved crosstalk index. The simulation demonstrates this index can improve evaluation accuracy efficiently and expands the usage field of crosstalk index.

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blind source separation / performance index / crosstalk index / global weight matrix / correlation coefficient

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LI Zong FENG Zhing-peng CHU Fu-lei. A performance index of blind source separation based on improved crosstalk index[J]. Journal of Vibration and Shock, 2012, 31(18): 83-88