A time-domain blind source separation by the Newton method

This paper proposes a new algorithm for BSS in the time domain. The method determines the separating matrix so that certain nonlinear cross correlations among the separator´s outputs become zero. The problem of computation time is solved by applying the Newton method and transforming the derived algorithm into the frequency-domain problem. The transformation is just to reduce the computation time and the size of variables; the signals themselves are not transformed into the frequency domain. An effective technique is introduced to enhance robustness of the proposed approach.