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Optical air data systems and methodsSystems and methods for sensing air outside a moving aircraft are presented. In one embodiment, a system includes a laser for generating laser energy. The system also includes one or more transceivers for projecting the laser energy as laser radiation to the air. Subsequently, each transceiver receives laser energy as it is backscattered from the air. A computer processes signals from the transceivers to distinguish molecular scattered laser radiation from aerosol scattered laser radiation and determines one or more air parameters based on the scattered laser radiation. Such air parameters may include air speed, air pressure, air temperature and aircraft orientation angle, such as yaw, angle of attack and sideslip.
Document ID
20090002656
Acquisition Source
Armstrong Flight Research Center
Document Type
Other - Patent
Authors
Caldwell, Loren M.
O'Brien, Martin J.
Weimer, Carl S.
Nelson, Loren D.
Date Acquired
August 24, 2013
Publication Date
July 15, 2008
Subject Category
Avionics And Aircraft Instrumentation
Funding Number(s)
CONTRACT_GRANT: NAS4-0243
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-Patent-7,400,385
Patent Application
US-Patent-Appl-SN-11/103,020

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