A new second-order method for blind signal separation from dynamic mixtures

Authors:
Yong Xiang;Saeid Nahavandi;Hieu Trinh;Hong Zheng
Affiliations:
School of Engineering and Technology, Deakin University, Geelong, VIC 3217, Australia;School of Engineering and Technology, Deakin University, Geelong, VIC 3217, Australia;School of Engineering and Technology, Deakin University, Geelong, VIC 3217, Australia;School of Electronic Information, Wuhan University, Hubei 430079, PR China
Venue:
Computers and Electrical Engineering
Year:
2004

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Abstract

This paper presents a new approach to separate colored stationary signals mixed by convolutive channels. A cost function is proposed by employing linear constraint to the demixing vectors. The linear constraint is shown to be sufficient for avoiding trivial solution. The minimization of the cost function is performed using the Lagrangian method. Simulation results demonstrate the performance of the algorithm.