A performance index of blind source separation based on improved crosstalk index
LI Zong1 FENG Zhing-peng2 CHU Fu-lei1
1. Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, China;2. Institute of Vehicular Engineering, University of Science and Technology Beijing, Beijing 100083, China
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.
2012, Vol. 31 
