The Role of the Effect of Shadowing of Some Wavy Regions by Other Wavy Regions in the Formation of an Image of Snell’s Window
- 18 Downloads
The shadowing of some regions of a wavy water surface by other regions can significantly influence the backscattered signal not only in the problem of remote monitoring of a water reservoir at grazing angles (e.g., in radar), but also in the problems of underwater vision. In this work, we present the results of a theoretical study of this phenomenon with respect to the model of underwater imaging of the sky (Snell’s window) near the image boundary. The numerical-simulation method is used to develop the statistically mean image of Snell’s window, which allows for the shadowing effects, and the corrected formula of the estimate of a wave parameter, namely, the water-surface slope variance, is obtained using the value of blurring of the boundary of Snell’s window.
Unable to display preview. Download preview PDF.
- 2.A. A. Molkov, L. S.Dolin, I.A.Kapustin, et al., Proc. SPIE, 9999, 99991D (2016).Google Scholar
- 7.F. G. Bass and I.M. Fuks, Wave Scattering from Statistically Rough Surfaces, Pergamon Press, Oxford (1979).Google Scholar
- 14.L. M. Ricciardi and S. Sato, Signal Proc., 11, No. 4, 339 (1986).Google Scholar
- 19.L. S. Dolin and I.M. Levin, Handbook in the Theory of Underwater Vision [in Russian], Gidrometeoizdat, Leningrad (1991).Google Scholar
- 20.L. Dolin, G. Gilbert, I. Levin, and A. Luchinin, Theory of Imaging Through Wavy Sea Surface, Inst. Appl. Phys., Nizhny Novgorod (2006).Google Scholar
- 21.V. L.Weber, “Simulation of the one-dimensional random surface,” Preprint No. 603 [in Russian], Inst. Appl. Phys., Nizhny Novgorod (2002).Google Scholar
- 25.A. A. Molkov, “Underwater Imaging of the Sea Surface as a Source of Information on the Wind Waves and Optical Properties of Water,” Cand. Sci. (Phys.-Math.) Thesis [in Russian], Inst. Appl. Phys., Nizhny Novgorod (2014).Google Scholar