Vol. 29, issue 04, article # 6

Abstract:

The article considers the problem of wind velocity estimation from the statistics of the integral characteristics of the images of incoherent sources in the turbulent atmosphere, namely, the received power and the bias vector of the center of gravity of the image. In the framework of the first approximation of the method of small perturbations, expressions for the mutual correlation functions of these characteristics and the bias vectors for a couple of point sources registered through a couple of receivers are derived. It is shown the correlation maxima are shifted from the origin of coordinates and the shift value depends on the wind velocity. The possibility of estimation of the vector of transverse velocity averaged over the optical path from the shape of correlation functions and shifts of correlation maxima is shown.

Keywords:

incoherent source, image, integral wind velocity, mutual correlation function, turbulence

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