Fault detection, exclusion, isolation, and re-configuration of navigation sensors using an abstraction layer

A system comprising:

• a plurality of sensors that provide redundant sensor measurements, wherein redundancy of the redundant sensor measurements is achieved based on an independence between measurements from different physical sensor units in the plurality of sensors;
• a fusion function configured to receive the redundant sensor measurements from each sensor in the plurality of sensors and calculate fused navigation parameters;
• an abstraction layer that calculates an estimated state based on the fused navigation parameters, wherein the estimated state comprises safety assessment information for the fused navigation parameters and the fused navigation parameters;
• and
• a plurality of user systems, wherein each user system in the plurality of user systems is configured to receive the estimated state from the abstraction layer.

A system comprising:

• a plurality of sensors that provide redundant sensor measurements, wherein redundancy of the redundant sensor measurements is achieved based on an independence between measurements from different physical sensor units;
• a fusion function configured to receive the redundant sensor measurements and create fused measurements;
• an abstraction layer configured to:
• receive the fused measurements from the fusion function;
• calculate safety assessment information based on the fused measurements;
• and
• provide the fused navigation parameters and the safety assessment information as an output;
• and
• a plurality of user systems that receives the navigation parameters and the safety assessment information from the abstraction layer, wherein at least one user system in the plurality of user systems determines operational capability for the at least one user system based on the fused navigation parameters and the safety assessment information.