A monopulse technique using two antennas for resolving the ambiguity of a VHF interferometer

A technique is described which allows the resolution of ambiguity (between the azimuth and elevation angles of the incident wave) to be checked by an independent method using the interferometer alone; the mode of operation is called amplitude monopulse. The problems of monopulse tracking are investigated along with the utilization of interferometer antennas. Attention is given to the influence of multipath phenomena on two monopulse techniques. It is concluded tha the described technique, for confirming the ambiguity resolution of the VHF interferometer, greatly improved the reliability of the tracking data from the ground station.