PROCEDURE FOR GUIDING AN AIRCRAFT IN THE APPROACH PHASE AND CORRESPONDING GROUND BEACON
First Claim
1. A method of guiding an aircraft in the approach phase comprising the steps consisting for the aircraft in:
- receiving information on a predefined approach path, this information being contained in a message M4 originating from a ground beacon transmitting on a same transmission channel as that of a beacon of a GBAS type positioning accuracy augmentation system;
receiving differential positioning satellite radio signals, and correction information from the satellite radio signals in the form of a message M1′
originating from a ground central station of an SBAS type positioning accuracy augmentation system, via geostationary satellites of this augmentation system; and
calculating a corrected position based on positioning signals and correction information, calculating an elevation and horizontal guidance deviation of the aircraft relative to the predefined approach path, based on the corrected position and information on the predefined approach path.
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Accused Products
Abstract
The invention relates to a procedure for guiding an aircraft in the approach phase comprising of receiving information on a predefined approach path, this information being contained in a message M4 originating from a ground beacon transmitting on the same transmission channel as that of a beacon of a GBAS type positioning accuracy augmentation system, receiving differential positioning radio satellite signals, and correction information from these satellite radio signals in the form of a message M1′ originating from a ground central station of an SBAS type positioning accuracy augmentation system, via geostationary satellites of this augmentation system, calculating a corrected position based on the positioning signals and correction information, calculating an elevation and horizontal guidance deviation of the aircraft relative to the predefined approach path, based on the corrected position and information on the predefined approach path.
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Citations
14 Claims
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1. A method of guiding an aircraft in the approach phase comprising the steps consisting for the aircraft in:
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receiving information on a predefined approach path, this information being contained in a message M4 originating from a ground beacon transmitting on a same transmission channel as that of a beacon of a GBAS type positioning accuracy augmentation system;
receiving differential positioning satellite radio signals, and correction information from the satellite radio signals in the form of a message M1′
originating from a ground central station of an SBAS type positioning accuracy augmentation system, via geostationary satellites of this augmentation system; and
calculating a corrected position based on positioning signals and correction information, calculating an elevation and horizontal guidance deviation of the aircraft relative to the predefined approach path, based on the corrected position and information on the predefined approach path. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A ground beacon comprising:
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means of storing information on predefined approach paths, means of formatting the information in the form of a message M4, means of transmitting the message M4 on the same transmission channel as that of a beacon of a GBAS type positioning accuracy augmentation system, means of receiving differential positioning satellite radio signals and of receiving correction information from the satellites radio signals, the information originating via SBAS satellites, from a wound central station of an SBAS type positioning accuracy augmentation system, means for determining the corrected position of the beacon based on satellite radio signals and correction information, means of storing the known position of the beacon, means for determining the integrity of the position calculation according to the corrected position and the known position, and means of controlling the transmission of the beacon based on the integrity. - View Dependent Claims (9, 11, 12, 13, 14)
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10. (canceled)
Specification