Abstract: An aircraft with a mission computer, a GNSS receiver with a first air interface and a first receiver and a data transmission unit with a second air interface and a second receiver. The data transmission unit can receive data via an encrypted, bidirectional communication path. The mission computer determines a position value for the aircraft based on satellite signals from the GNSS receiver to which a correction term has been applied, which is transmitted to the aircraft by the data transmission unit to determine corrected satellite signals. The corrected satellite signals are the basis for determining corrected position value. The mission computer uses a GNSS receiver and data transmission unit as part of the aircraft. A ground arrangement is provided with an associated ground station and optionally a test unit for checking correct determination of the corrected position value.

Abstract: The invention relates to an air traffic control of aircraft. At least one transmission station in an aircraft transmits a broadcast signal received by at least one receiving station and further transmits at least a part of the data contained in the broadcast signal to a central station or other organizations. At least part of the receiving stations are designed as satellite receiving stations, wherein the broadcast signal transmitted by the at least one transmission station to be secured is received by at least one of the satellite receiving stations and at least part of the data contained in the broadcast signal is further transmitted via a radio transmission route to a satellite ground control station and further to the air traffic control central station or another organization.

Abstract: The invention relates to an arrangement and a method for flight security and/or air traffic control of aircraft (1, 2). At least one transmission station (3, 4) in an aircraft (1, 2) to be securing and/or directed transmits a broadcast signal (5, 6) received by at least one of a plurality of receiving stations (20) at a distance from each other and further transmitting at least a part of the data contained in the broadcast signal (5, 6) to a flight security and/or air traffic control central station (11) or other organizations.