FIELD: radio engineering, communication.
SUBSTANCE: unauthorised use of aircraft is prevented using onboard equipment and equipment installed at an air traffic control centre to determine coordinates and motion parameters of the aircraft and predict the possibility of unauthorised change in flight path. The obtained data are used to determine and process composite signals having high energy and structural security.
EFFECT: high noise-immunity and reliability of two-way radio communication between an air traffic control centre and aircraft by suppressing spurious signals received over image and combinational channels.
4 dwg
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