Performance of contrast-based blind source separation
Pierre Comon, Pascal Chevalier, Valérie Capdevielle · 2002
A source separator is proposed based on a contrast functional previously introduced. This contrast is not based on squaring the sample cumulants, which allows a reduced variance on the estimated separating matrix. In fact, it is shown by extensive computer experiments how this contrast compares with JADE, and with the contrast squaring sample fourth-order cumulants. Then a procedure is outlined that allows one to compute the asymptotic theoretical performance.