Patent ID: 8498758

Claim:
A system for generating aircraft altitude data, such system comprising: a source of reference point data; a source of instrument landing system (“ILS”) deviation data; at least one source of navigation data; and a processor configured to retrieve reference point data, receive ILS deviation data, receive first navigation data from a system in which navigation data is derived from inertial sensors, where the first navigation data is representative of a measurement of aircraft geographic position, receive second navigation data from either a satellite navigation system, a system in which navigation data is derived from pitot-static system sensors, or a combination of both, where the second navigation data is representative of a first measurement of aircraft altitude, determine a second measurement of aircraft altitude as a function of the reference point data, the ILS deviation data, and the first navigation data, determine an instant measurement of aircraft altitude as a function of the first measurement of aircraft altitude, and the second measurement of aircraft altitude, and generate aircraft altitude data responsive to the determination of the instant measurement of aircraft altitude, where the aircraft altitude data is representative of aircraft altitude information.