ESTIMATION OF CROSS-WIND AND TURBULENCE BY DISPERSION OF DIFFERENCE OF DISPLACEMENT OF SECTIONS OF OBSERVED OBJECT IMAGE
Abstract and keywords
Abstract:
Considered an approach to the estimation of wind speed and turbulence, based on registration and cross-correlation computer processing of atmospheric distortions of non-coherent images of remote observation objects. For a monocular optical scheme of measurements, an algorithm is proposed, based on the calculation of the odd part of the cross-correlation function of the series of jitters of selected fragments in the image of the observation object, which allows to significantly reduce the influence of vibration interference in video-digital measurements of wind speed. Estimates of wind are made by the slope of the CCF at zero delay. The structural characteristic that characterizes the intensity of turbulence is estimated based on the variance of the difference between the series of jitters of image fragments.

Keywords:
wind, turbulence, dispersion
References

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