Estimation of Underdetermined BSS Mixing Matrix Based on Sparsity
Ying Song · Mechanical Engineering & Automation · 2010
The model of underdetermined blind signal separation(BSS) is put forward,and the sparsity of signals on time domain and frequency domain are stated briefly.Underdetermined BSS based on sparsity generally takes two-step approach,for the core of two-step,the estimation of mixing matrix,several clustering algorithms are summed up in this paper.The merits and drawbacks are compared among these algorithms,for the further research on mixing matrix in the future.