Low visibility landing system

a low-visibility, landing system technology, applied in the direction of process and machine control, vehicle position/course/altitude control, instruments, etc., to achieve the effect of greater accuracy
US20110106345A1Inactive Publication Date: 2011-05-05GULFSTREAM AEROSPACE CORP
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
GULFSTREAM AEROSPACE CORP
Publication Date
2011-05-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

Examples of the present invention may include a low visibility landing system for guiding aircraft on landing approaches. The low visibility landing system may aid a pilot during landing in low visibility conditions such that an aircraft may descend to lower altitudes without visual contact with the runway than is possible with other landing systems. The system may use various navigational systems to produce a hybrid signal that may be more stable than individual signals of those navigational systems. The hybrid signal is compared to a predetermined landing approach plan to determine the deviation of the aircraft from the landing approach plan and to provide guidance to the pilot to get the aircraft back onto the landing approach plan. The system may also use multiple navigational systems to perform checks on an operation of a primary navigational system to ensure that the primary navigational system is operating accurately.
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Description

FIELD OF THE INVENTION

[0001] Embodiments of the present invention relate to aircraft landing systems and, more particularly, to landing systems used in low visibility conditions.BACKGROUND OF THE INVENTION

[0002] Currently, commercial aircraft employ guidance systems that warn pilots when the aircraft is deviating from a flight path. Guidance systems must have certain levels of accuracy, integrity, continuity, and availability during ordinary flight. Guidance systems that are used for landing require additional levels of accuracy, integrity, continuity, and availability. Landing systems typically provide high precision data relating to position and deviation of an aircraft from a landing approach path. This high precision often requires special equipment, which can be beneficial in situations where fog, clouds, and / or other conditions reduce visibility.

[0003] Airport landing systems are categorized by the Federal Aviation Administration (FAA) or other certification authority into differ...

Claims

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