A Robust Underdetermined Mixing Matrix Estimation Algorithm
Yang Jing-shu · Journal of Astronautics · 2013
In this paper,an improved algorithm is proposed for mixing matrix estimation in underdetermined blind source separation(UBSS).In the algorithm,the single source points in the time-frequency(TF) domain are detected first.Then,those single source points which deteriorate the mixing matrix estimation accuracy are removed.Finally,the mixing matrix is estimated by using a clustering method.It is experimentally shown that the proposed algorithm estimates the mixing matrix with high accuracy and robustness compared with existing algorithms.