Mixing Matrix Recovery of Underdetermined Source Separation Based on Sparse Representation. - Chu-Jun Yao; Hai-Lin Liu 001; Zhi-Tao Cui (CIS, 2007)

A New Algorithm to Estimate Mixing-Matrix of Underdetermined Blind Signal Separation. - Zhi-Tao Cui; Ke Jian (CIS, 2012)