Flight control system with synthetic intertial localizer deviation and method of use
AssigneeThe Boeing Company
InventorsRobert E. McLees, Robert Erik Freeman, Prachya Panyakeow
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Abstract
A flight control module for computing localizer deviation during landing of an aircraft is provided. The flight control module includes a communication interface and a processor. The communication interface is configured to receive inertial data for the aircraft. The processor is coupled to the communication interface and is configured to compute an inertial localizer deviation based on the inertial data.
Claims20
A flight control module for computing localizer deviation during landing of an aircraft, comprising:
- a communication interface configured to receive inertial data for said aircraft;
- a processor coupled to said communication interface and configured to compute an inertial localizer deviation based on the inertial data.
A flight control system for landing an aircraft, said flight control system comprising:
- a communication bus;
- first and second multi-mode receivers (MMRs) coupled to said communication bus and configured to:
- compute first and second localizer deviations based on received localizer signals, and p2 transmit first and second localizer deviation signals indicative of the first and second localizer deviations onto said communication bus;
- and
- a flight control module coupled to said communication bus and configured to:
- receive inertial data for the aircraft and the first and second localizer deviation signals over said communication bus,
- compute an inertial localizer deviation based on the inertial data,
- select one localizer deviation from among the first and second localizer deviations and the inertial localizer deviation, and
- transmit the one localizer deviation to an automated landing system for said aircraft.
A method of detecting a localizer deviation for an aircraft during landing, said method comprising:
- receiving instrument landing system (ILS) localizer signals;
- computing multi-mode receiver (MMR) localizer deviations based on the ILS localizer signals;
- filtering the MMR localizer deviations;
- initializing an inertial localizer deviation computation based on a filtered MMR localizer deviation;
- integrating inertial data, generated by an inertial reference unit (IRU) for the aircraft, from the filtered MMR localizer deviation to generate an inertial localizer deviation at the IRU;
- and
- translating the inertial localizer deviation at the IRU to a guidance control point (GCP).
Dependencies are inferred from the claim text.