Patent ID: 7352319

Claim:
A munition comprising: a sequencer configured to receive a detonation altitude for said munition; a radar receiver, said radar receiver comprising a radar range gate programmed with a first altitude and a reference altitude based on the received detonation altitude; a radar transmitter configured to operate in a pulse repetition frequency mode while the munition is outside the radar range gate; a velocity detector configured to determine a velocity of said munition based on radar ground return signals passed through said range gate at the first altitude; and a time delay controller, said time delay controller configured to generate a detonation signal for said munition based on the received detonation altitude, the detected velocity of said munition, and the reference altitude of said munition; wherein said radar transmitter is configured to transmit a continuous wave transmission for a predetermined period of time upon a determination that said munition is at an altitude represented by the first altitude setting of said radar range gate.