A.F. Kriachko – Dr. Sc. (Eng.), Professor, Head of Department of Radio Technical and Optoelectronic Complex,  Saint-Petersburg State University of Aerospace Instrumentation

E-mail: alex_k34.ru@mail.ru

S.S. Poddubnyy – Ph. D. (Eng.), Associate Professor, Department of Radio Systems, 

Saint-Petersburg State University of Aerospace Instrumentation

E-mail: poddubnyy_47@mail.ru

V.F. Surjikov – Ph. D. (Eng.), Associate Professor, Department of Radio Technical and Optoelectronic Complex,  Saint-Petersburg State University of Aerospace Instrumentation E-mail: kaf21@aanet.ru

Analysis of ground radar targets and their orientation relative to the radar shows that a significant contribution to the reflected signal energy making local scattering sites, as well as the presence of the underlying surface. Availability of «air – the earth» demarcation boundary leads to emergence of two mutually crossed lit areas, the first of which is caused by the direct wave, and the second – a wave reflected from the land surface. Considered method of calculation takes into account the presence of radar absorbing coatings on smooth areas and crevices of the object surface.

1. Kryachko A.F., Krasyuk V.N., Bestugin A.R., Ovodenko A.A. Model' rasseyaniya e'lektromagnitny'x voln ot ob''ektov s radiopogloshhayushhimi i teplozashhitny'mi pokry'tiyami // Uspexi sovremennoj radioe'lektroniki. 2013. № 2. S. 15−23.
2. My'sovskix I.P. Interpolyaczionny'e kubaturny'e formuly'. M.: Nauka. Glavnaya redakcziya fiziko-matematicheskoj literatury'. 1981. 336 s.
3. Suxarevskij I.V., Suxarevskij O.I. Raschet polya, vozbuzhdaemogo izluchayushhej aperturoj v prisutstvii proizvol'noj sistemy' rasseivatelej // Radiotexnika i e'lektronika. 1986. T. 31. № 1. S. 8−13.
4. Kryachko A.F., Lixachev V.M., Nevejkin M.E. Rasseyanie e'lektromagnitny'x voln na tele proizvol'nogo poperechnogo secheniya. Vy'sokochastotnaya asimptotika // Uspexi sovremennoj radioe'lektroniki. 2013. № 2. S. 29−38.