Optical air data systems and methods
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United States of America Patent
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Jul 21, 2009
Grant Date -
May 17, 2007
app pub date -
Jul 17, 2006
filing date -
Aug 2, 2002
priority date (Note) -
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Abstract
A method for remotely sensing air outside a moving aircraft includes generating laser radiation within a swept frequency range. A portion of the laser radiation is projected from the aircraft into the air to induce scattered laser radiation. Filtered scattered laser radiation, filtered laser radiation, and unfiltered laser radiation are detected. At least one actual ratio is determined from data corresponding to the filtered scattered laser radiation and the unfiltered laser radiation. One or more air parameters are determined by correlating the actual ratio to at least one reference ratio.
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