Blind source separation based on phase and frequency redundancy of cyclostationary signals
Yong Xiang, Wensheng Yu, Jingxin Zhang, Senjian An · Deakin Research Online (Deakin University) · 2004
\t\t\t\t\tThis paper presents a new method for blind source separation by exploiting phase and frequency redundancy of cyclostationary signals in a complementary way. It requires a weaker separation condition than those methods which only exploit the phase diversity or the frequency diversity of the source signals. The separation criterion is to diagonalize a polynomial matrix whose coefficient matrices consist of the correlation and cyclic correlation matrices, at time delay .TAU. = 0, of multiple measurements. An algorithm is proposed to perform the blind source separation. Computer simulation results illustrate the performance of the new algorithm in comparison with the existing ones. \t\t\t\t