Patent ID: 9097793
Filing Date: 2015-08-04
Classification: G01S

Abstract:
1. A system for the detection of munitions, the system comprising a radar, processing means and an indicator wherein the radar has a transmitter, a receiver, a transmit antenna, and one or more receive antennas arranged to transmit a signal and to receive reflections of the signal from a region, wherein the transmit and receive antennas are arranged to have transmit and receive beams oriented to include ground level coverage, wherein the one or more receive antennas comprise a plurality of antenna elements arranged to provide a plurality of receive beams, each having an associated receiver chain, and wherein the processor incorporates a Doppler filter arranged to reject received signals corresponding to a target outside of predetermined velocity limits, these velocity limits being chosen as representative of maximum and minimum velocities of the targets of interest in flight, the processor further being arranged to estimate, using the received signals, an impact location of a detected target, and further wherein the indicator is adapted to provide an indication when the estimated impact location is within a predetermined area or distance from the radar.