11 October 2010 Passive cross-wind remote sensing using optical turbulence-induced fluctuations
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Abstract
This paper presents a new method for remote sensing of cross-wind by using a naturally illuminated scene as a light source. The method is based on spatial and temporal correlations of the intensity fluctuations measured by a passive imaging device such as a video camera. Adaptable spatial filtering, taking into account variations of the dominant scales of the turbulence (due to changes in meteorological conditions or imaging device performance) is integrated into this method. The major merits of the proposed technique lie in its simple implementation for a wide range of imaging systems and ability to remotely sense the crosswind with naturally occurring targets. Experimental comparison with independent wind measurement using anemometers shows good agreement.
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O. Porat, O. Porat, J. Shapira, J. Shapira, } "Passive cross-wind remote sensing using optical turbulence-induced fluctuations", Proc. SPIE 7828, Optics in Atmospheric Propagation and Adaptive Systems XIII, 78280A (11 October 2010); doi: 10.1117/12.864831; https://doi.org/10.1117/12.864831
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