1. A method for detecting one or more radar targets of interest in the presence of jamming signals, said method comprising the steps of: (a) forming a plurality of sub-arrays from an antenna array; (b) adaptively forming sub-array beams so as to point one or more nulls in one or more respective directions corresponding to one or more jammers; and (c) applying a superresolution technique to determine a count of the one or more radar targets.