MonoPulse Angle Measurement For An Airborne Side-Looking Phased Array PD Radar

For airborne phased-array Radar, target angle measurement generally utilizes monopulse method in sum(Σ) and difference(Δ) beams. This paper discusses a monopulse angle measurement method in Doppler-domain, which compares the Doppler filter output amplitude of Σ channel with that of Δ channel, and gets the angle bias by finding the angle bias-table of Σ channel and Δ channel. And then get the positive or negative of the bias by comparing the phase between Σ channel and Δ channel. Practical results show the effectiveness of this method.