Optical air data systems and methods
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United States of America Patent
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Jul 15, 2008
Grant Date -
Nov 10, 2005
app pub date -
Apr 11, 2005
filing date -
Aug 2, 2002
priority date (Note) -
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Abstract
Systems 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.
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