Target seeker simulator

DETAILED DESCRIPTION From the above discussion, it can be seen that an object of the invention is to simulate an enemy missile in flight by reorienting an antenna carried by a drone missile such that its transmission, which simulates enemy signals, is directed toward a friendly object.
It is another object of the present invention to employ a signal diplexer which permits the reception by the antenna of a ground-controlled CW signal which is used to redirect the orientation of the antenna carried by the missile for simultaneous transmission of radiation from the missile toward a friendly object, such as a ship or launch site.
The diplexer is a passive device utilizing a waveguide bandpass filter to separate the two signals.
It is a further object of the invention to provide a missile having an antenna which orients itself toward a specific object on the earth without redirecting the flight of the missile.
It is still another object of the invention to provide essentially concurrent reception and transmission where the transmit mode frequency bandwidth is sufficiently distinct from the receive mode bandwidth.
It is still a further object of the present invention to provide apparatus which simulates an enemy target seeker.
In particular, an array antenna receives signals from a ground station located where the target is.
Performing sums and differences on the signals of the array elements, elevation and azimuth signals are generated which are used to orient the antenna toward the ground controlled signal source.
In accordance with the invention, servos provide inputs only to the antenna and not to the flight control elements of the missile.