On the statistics and the detection of multichannel common zeros

Blind identification and equalization of single-input/multiple-output (SIMO) systems already received a great deal of sustainable interest. This paper directs the attention towards the characteristics of common channel zeros and in particular the common phantom zeros of blindly estimated channels. The understanding facilitates the major contribution of the paper which is a method for the separation of the common phantom-zeros part of blindly estimated channels. The method is supposed to have application in the removal of common phantom zeros after blind channel identification (BCI) and before multichannel equalization, i.e., to improve the signal processing conditions at the interface of identification and equalization.