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Surface layer atmospheric turbulence differential image motion measurement

United States Patent Application

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Apparatus and methods for surface layer atmospheric turbulence differential image motion measurement provide the ability to measure and characterize the atmospheric turbulence in a surface boundary layer with applications to a wide variety of technical areas including, but not limited to, astronomy and atmospheric conditions for take-off and landing at airports. Methods and apparatus include multiple optical sources and a receiver having sub-apertures for detecting light traveling along independent paths from the optical sources to the sub-apertures. The sub-apertures of the receiver are arranged, including relative spacing, to match the geometric arrangement of the multiple optical sources, where there is one sub-aperture for each optical source. Appropriate images received by the sub-apertures are analyzed using differential image motion measurement techniques.
McGraw, John T. (Placitas, NM), Zimmer, Peter C. (Albuquerque, NM), Ackermann, Mark R. (Albuquerque, NM)
11/ 016,966
December 20, 2004
[0002] This invention was made with Government support under Contract DE-AC04-94AL85000 awarded by the United States Department of Energy. The Government has certain rights in the invention.