Y.N. Pribytkov - Ph.D. (Phys.-Math.), associate professor, Head of Department JSC - Concern "Sozvezdie". E-mail: ypribytkov@kodofon.vrn.ru A.Y. Savinkov - Dr.Sc. (Eng.), associate professor, Deputy Director of Programs ОАО - Concern "Sozvezdie". E-mail: a.savinkov@mail.ru