Single-ended laser wind sensor

Details Single-ended laser wind sensor Single-ended laser wind sensor

Oct 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996spie.2828..489b&link_type=abstract

Proc. SPIE Vol. 2828, p. 489-494, Image Propagation through the Atmosphere, J. C. Dainty; Luc R. Bissonnette; Eds.

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A single-ended, non-Doppler, laser wind sensor has been developed to measure path-integrated cross winds by viewing a distant target through a large telescope and observing the motion of a laser speckle pattern. The speed of the moving speckle pattern is determined by a cross-correlation between the signals from two detectors in the telescope focal plane. A prototype laser wind sensor was developed and tested. Results are shown for a laboratory test in a wind tunnel and for an outdoor test in a non-homogeneous wind field. Practical applications of the sensor are discussed, and possible modifications to measure two- or three-dimensional wind fields are described.

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