RADAR TARGET ANGLE MEASURING SYSTEM

A radar system for measuring an angle of a target. A radar antenna produc at any given instant, one of a pair of directional radar beams. The beams are angularly displaced with respect to each other and overlap within the expected target direction. A code generator sends a train of R-F pulses to the radar antenna. An antenna beam switch, connected between the antenna and the code generator, switches, over a set period of time, every other pulse to one radar beam and the remaining pulses to the other radar beam. The two resulting coded pulse groups differ from each other. A receiver is connected to the radar antenna to receive return signals during a time period which corresponds to a given target range distance. The return signals are auto-correlated with replicas of the transmitted coded signals and the respective correlation outputs are ratio compared with each other to determine exact target angles.