Methods and systems for calculating atmospheric vehicle air data

a technology for atmospheric vehicles and air data, applied in the field of flight vehicles, can solve the problems of requiring valuable space in the aircraft, requiring a large amount of calibration of deployable probes, and affecting the safety of aircraft,
US20080066540A1Active Publication Date: 2008-03-20THE BOEING CO
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
THE BOEING CO
Publication Date
2008-03-20

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Abstract

Methods and systems for calculating atmospheric vehicle air data are disclosed. In one embodiment, a method of calculating air data includes acquiring one or more pressure measurements at locations on an outer surface of the aircraft; acquiring one or more measurements using an alternate navigation device; computing an indicated air data solution using the one or more measurements obtained using the alternate navigation device and an atmospheric model; computing corrections to the indicated air data solution using one or more other measured parameters, wherein the one or more other measured parameters include at least one of the one or more pressure measurements and the one or more measurements obtained using the alternate navigation device; determining a corrected air data solution using the indicated air data solution and the corrections; and providing the corrected air data solution for use in controlling the aircraft.
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Description

STATEMENT OF GOVERNMENT INTEREST

[0001] This invention was made with government support under contract number F30602-03-C-2005 awarded by the United States Air Force. The U.S. Government has certain rights in this invention.FIELD OF THE INVENTION

[0002] This invention relates generally to control of flight vehicles, and more specifically, to methods of calculating atmospheric vehicle air data.BACKGROUND OF THE INVENTION

[0003] Flight control and guidance of a vehicle through the atmosphere requires knowledge of the vehicle's motion and attitude relative to the earth's air mass. This knowledge, commonly referred to as “air data,” is generally measured using instruments that either protrude into the surrounding airstream, or are flush mounted with an outer surface of the vehicle. Alternately, other instruments may use inertial navigation system (INS) derived values.

[0004] Although desirable results have been achieved using such prior art air data systems, there is room for improvement. For e...

Claims

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