基于改进的串音误差的盲分离评价指标

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (18) : 83-88.

论文

基于改进的串音误差的盲分离评价指标

李宗1 冯志鹏2 褚福磊1

作者信息 +

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

LI Zong1 FENG Zhing-peng2 CHU Fu-lei1

Author information +

文章历史 +

摘要

盲分离评价指标串音误差对于各分量能量差异大的源信号和全局矩阵为某些非行元素优势矩阵常常不能给出正确的分离评价。针对这一问题，文章通过构造全局权重矩阵和引入相关系数，提出了改进的串音误差评价指标，应用仿真信号进行了分析，结果表明改进的评价指标可有效提高评价的准确性，扩大了串音误差的应用范围。

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.

导出引用

李宗冯志鹏褚福磊. 基于改进的串音误差的盲分离评价指标[J]. 振动与冲击, 2012, 31(18): 83-88

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