FIELD: radio engineering, communication.
SUBSTANCE: in order to move refuelling aircraft parallel to the heading of refuelled aircraft, a radar station for determining the moment of issuing a command to launch a defence weapon, mounted onboard the refuelling aircraft with a radar antenna, the maximum of the focused beam pattern of which is directed perpendicular to the longitudinal axis of the refuelling aircraft, generates short pulses at the onset and detection by the radar station of signals with differential frequency Fdo=2Vofn/C and 3Fdo, where fn is the average frequency of the chirp signal emitted by the radar station, selected based on the condition Fdo/Vo=fn/Fm fd, where fd and Fm are deviation of the frequency and modulation frequency of the chirp signal, respectively; Vo is the minimum possible radial velocity of the refuelled aircraft; Do and C are the selected basic distance and speed of light, respectively, wherein when the radar station generates a short pulse, upon detecting a signal with differential frequency Fdo=2Vofn/C, the refuelling aircraft turns away from the refuelled aircraft, and when the radar station generates a short pulse, upon detecting a signal with differential frequency 3Fdo=2Vofn/C, the refuelling aircraft turns towards the refuelled aircraft, which enables to keep the aircraft at a distance of Do to 3 Do from the antenna of the radar station and move on parallel heading.
EFFECT: wider range of devices which enable to move vehicles on parallel heading.
