A method of guiding a munition to a target transmitting one or more signals is
described. The method includes configuring the munition with a radio frequency
receiver, an antenna for the receiver mounted such that a main beam of the antenna
pattern for the antenna is offset from a line of flight axis of the munition by
an angle and configuring the munition to rotate along an axis substantially similar
to the line of flight axis of the munition. The method also includes configuring
the munition to process signals received at the antenna, wherein heading changes
of the munition, the angle of the main beam of the antenna from the line of flight
axis, and the rotation of the munition result in the received signals having amplitude
variations. Directional corrections are generated for the munition to direct the
munition towards the target based on amplitude variations in the received signals.
