System and method for gnss vehicle navigation data augmentation

A method comprising:

• receiving, for a vehicle from a first augmentation source, first augmentation data corresponding to a first Global Navigation Satellite System (GNSS) constellation;
• receiving, for the vehicle from a second augmentation source that is different from the first augmentation source, second augmentation data corresponding to a second GNSS constellation;
• selecting or deriving augmentation data by comparing a confidence value of the first augmentation data to a confidence value of the second augmentation data;
• generating aggregated data for the vehicle, wherein the aggregated data includes the selected augmentation data and navigation data from the corresponding GNSS constellation;
• and
• sending the aggregated data to the vehicle.

An aircraft comprising:

• a transceiver configured to receive unsigned navigation data associated with satellites of a Global Navigation Satellite System (GNSS) constellation;
• and
• one or more processors coupled to the transceiver and configured to:
• verify authenticity of signed navigation data from a ground station, wherein the signed navigation data is received as part of a transmission of aggregated data;
• after verification of the signed navigation data, perform a verification of the unsigned navigation data based on a comparison with the signed navigation data;
• and
• control operation of the aircraft based on the verification of the unsigned navigation data.