Measuring and testing – Fluid flow direction
Reexamination Certificate
2008-03-18
2008-03-18
Allen, Andre J. (Department: 2855)
Measuring and testing
Fluid flow direction
C073S170170
Reexamination Certificate
active
07343793
ABSTRACT:
Characterizing atmospheric conditions is accomplished by measuring at least one varying spectral characteristic of sound at a plurality of intervals from a sound source with the point of measurement and the sound source in relative motion and separated by altitude. The spectral characteristic of the sound at each interval is attributed to a path traveled by the sound and a plurality of simultaneous equations is created for the plurality of paths using a second plurality of altitude segments for each path, each segment having a particular vector as a variable on the spectral characteristic, the initial coefficients in each vector assumed based on predetermined atmospheric models for each altitude segment. The resulting calculated vector and the predetermined atmospheric model are iterated for a minimized cost function in a variational analysis to determine the vector for each altitude segment, the vector providing atmospheric properties for the associated altitude segment.
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Jackson Bronwyn A.
Tillotson Brian J.
Allen Andre J.
Fischer Felix L.
The Boeing Company
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