Suppressing more than K-1 interferers using a K element array

In this work we show that, for a
K
element adaptive array and for interferers with fractional signal bandwidth, interference nulling can be accomplished using a tapped delay-line processor even when the number of interferers is greater than
K-1
provided that the center frequencies are different. The performance of the tapped delay-line processor improves with increasing number of taps and with decreasing interference bandwidth.