Blind channel identifiability/equalizability of single input multiple output nonlinear channels from second order statistics
Roberto López-Valcarce, Soura Dasgupta · 2002
We explore the utility of second-order statistics for blind identification/equalization of nonlinear channels. Under standard assumptions it is shown that the channel cannot be identified to within a scaling factor from the output second order statistics, but that the ambiguity is at a level that permits equalization. We show that these results cover cases that the prior literature does not address.