Flight control system with synthetic inertial localizer deviation and method of use
First Claim
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1. A flight control module for computing localizer deviation during landing of an aircraft, comprising:
- a communication interface configured to receive;
first and second localizer deviation signals indicative of respective localizer deviations computed based on a localizer transmission received by said aircraft, andinertial data for said aircraft;
a processor coupled to said communication interface and configured to compute an inertial localizer deviation based on the inertial data; and
a single selection fault detection (SSFD) module configured to select one localizer deviation from among the respective localizer deviations and the inertial localizer deviation for use in controlling an automated landing system of said aircraft.
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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.
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Citations
20 Claims
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1. A flight control module for computing localizer deviation during landing of an aircraft, comprising:
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a communication interface configured to receive; first and second localizer deviation signals indicative of respective localizer deviations computed based on a localizer transmission received by said aircraft, and 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; and a single selection fault detection (SSFD) module configured to select one localizer deviation from among the respective localizer deviations and the inertial localizer deviation for use in controlling an automated landing system of said aircraft. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A flight control system for landing an aircraft, said flight control system comprising:
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a communication bus; first and second multi-mode receivers (MMRs) coupled to said communication bus and configured to; compute first and second localizer deviations, respectively, based on received localizer signals, and transmit first and second localizer deviation signals, respectively, 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. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of detecting a localizer deviation for an aircraft during landing, said method comprising:
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receiving instrument landing system (ILS) localizer signals; computing, by first and second multi-mode receivers (MMRs), respective MMR localizer deviations based on the ILS localizer signals; filtering the respective MMR localizer deviations; initializing an inertial localizer deviation computation, the initializing comprising latching a filtered MMR localizer deviation upon an altitude of the aircraft falling below a predetermined threshold; 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). - View Dependent Claims (17, 18, 19, 20)
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Specification