Method of operating monopulse radar

Claim 1

In a computer-controlled radar system operating in the presence of a stand-off barrage-type jammer, the method of reacquiring a target under track as it exits from the effective zone of the jammer, wherein the average power, P J , of such a jammer is of sufficient magnitude to mask the power, P T , of a target return signal, comprising: (a) turning off the radar transmitter and passively determining the angular location, θ J , and the average power, P J , of the jammer when the target return signal is masked by the jammer; (b) activating the radar transmitter when the target exits from the effective zone of the jammer and measuring the average angle, θ, and the average power, P J+T , of the target plus jammer; (c) calculating the angular location, θ T , of the target relative to the antenna boresight axis in accordance with the following: ##EQU2## (d) range and angle gating the signals received by the radar to reinstitute tracking of the target.