Patent ID: 9739878
Date: 2017-08-22
CPC Classifications: G01S

Claim:
1. A method, comprising: receiving signals from an emitter on a plurality of antennas of a radar warning receiver system; determining an angle of arrival of the received signals from the emitter from first and second ones of the plurality of antennas; determining a range for the emitter from a strength of the signals from the first and second ones of the plurality of antennas; receiving navigational information for a vehicle to which the radar warning receiver is attached, the navigational information including aircraft attitude information; combining, using a computer processor, the aircraft attitude information with the range and the angle of arrival to determine a position of the emitter in three dimensions; using navigation data to stabilize the three-dimensional emitter position against aircraft position changes; applying tracking to the successive three-dimensional emitter location estimates to generate at least one track of position for the emitter; using the at least one track when information from the radar warning receiver is not available; and transforming the at least one track into angle of arrival data.