Consistent localizer captures
First Claim
1. A method for guiding an aircraft, comprising:
- determining at least one instrument landing system (ILS) threshold;
establishing at least one final approach course (FAC) deviation threshold for the aircraft;
receiving at least one ILS localizer error;
calculating at least one FAC deviation;
comparing the at least one ILS localizer error and the at least one FAC deviation with corresponding ILS and FAC thresholds, respectively; and
performing a standard localizer capture maneuver if the at least one ILS localizer error reaches a corresponding ILS threshold prior to the at least one FAC deviation reaching a corresponding FAC threshold, and performing a modified capture maneuver if the at least one FAC deviation reaches the corresponding FAC threshold prior to the at least one ILS localizer error reaching the corresponding ILS threshold.
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Accused Products
Abstract
Systems and methods for performing localizer capture maneuvers are disclosed. In one embodiment, a method includes determining at least one instrument landing system (ILS) threshold of an aircraft, and establishing at least one final approach course (FAC) deviation threshold for the aircraft. The method further includes receiving at least one ILS localizer error, then calculating at least one FAC deviation. The at least one ILS localizer error is compared to the ILS threshold, and the at least one FAC deviation is compared to the FAC threshold. A standard capture maneuver is performed if the at least one ILS localizer error reaches its corresponding ILS threshold prior to the at least one FAC deviation reaching its FAC threshold. However, if the at least one FAC deviation reaches its corresponding FAC threshold prior to the at least one ILS localizer error reaching its corresponding ILS threshold, a modified capture maneuver is performed.
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Citations
20 Claims
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1. A method for guiding an aircraft, comprising:
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determining at least one instrument landing system (ILS) threshold; establishing at least one final approach course (FAC) deviation threshold for the aircraft; receiving at least one ILS localizer error; calculating at least one FAC deviation; comparing the at least one ILS localizer error and the at least one FAC deviation with corresponding ILS and FAC thresholds, respectively; and performing a standard localizer capture maneuver if the at least one ILS localizer error reaches a corresponding ILS threshold prior to the at least one FAC deviation reaching a corresponding FAC threshold, and performing a modified capture maneuver if the at least one FAC deviation reaches the corresponding FAC threshold prior to the at least one ILS localizer error reaching the corresponding ILS threshold. - View Dependent Claims (2, 3, 4, 5, 6, 19)
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7. A computer readable medium having computer-executable instructions that, when executed, perform a method comprising:
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determining at least one instrument landing system (ILS) threshold of an aircraft; establishing at least one final approach course (FAC) deviation threshold for the aircraft; receiving at least one instrument landing system (ILS) input for the aircraft; receiving at least one FAC deviation input for the aircraft; comparing the at least one ILS localizer error and the at least one FAC deviation with corresponding ILS and FAC thresholds; and performing a standard localizer ILS capture maneuver if the at least one ILS localizer error reaches a corresponding ILS threshold; and performing a turn maneuver to a shallow intercept angle prior to performing the standard localizer capture maneuver at least if the at least one FAC deviation reaches a corresponding FAC threshold. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 20)
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15. An aircraft comprising:
a structural assembly; and at least one system for guiding aircraft at least partially disposed within the structural assembly, the system comprising; an instrument landing system (ILS) component configured to receive at least one ILS localizer error and at least one calculated ILS threshold; a flight management function (FMF) component configured to receive at least one calculated final approach course (FAC) deviation and at least one established FAC deviation threshold; a comparator component configured to compare the at least one ILS localizer error and the at least one FAC deviation with corresponding ILS and FAC thresholds; an execution component configured to perform a standard localizer capture maneuver if the at least one ILS localizer error reaches a corresponding ILS threshold prior to the at least one FAC deviation reaching a corresponding FAC threshold, and perform a modified capture maneuver if the at least one FAC deviation reaches the corresponding FAC threshold prior to the at least one ILS localizer error reaching the corresponding ILS threshold. - View Dependent Claims (16, 17, 18)
Specification