D.S. Demidov – Post-graduate Student, Department «Computing and Applied Mathematics», Ryazan State Radio Engineering University

E-mail: dmitri-demidiv@yandex.ru

G.V. Ovechkin – Dr. Sc. (Eng.), Associate Professor, Professor, Department «Computing and Applied Mathematics», Ryazan State Radio Engineering University

E-mail: g_ovechkin@mail.ru