a target activated spin stabilized projectile fired in a sustantially flatrajectory utilizes a pair of diametrically disposed antennae electrically coupled to a 35 gigahertz radiometer to scan a target area . upon detection of a target within the proximity of the projectile &# 39 ; s flight path logic circuitry of the radiometer generates a signal activating one branch of a dual out - of - line ignition system . the selected ignition branch fires a high speed self - forging slug from a target aligned side of a miznay - shardin type warhead vertically downward into the &# 34 ; soft &# 34 ; top side of the detected target .