V.N. Kharisov - Dr. Sc. (Eng.), Professor, Director of Navigation and Communication Systems, OJSC «VNIIR-Progress» (Moscow). E-mail: vhar@list.ru A.I. Gavrilov - Research Scientist, Bauman Moscow State Technical University P.M. Golovin - Research Scientist, OJSC «VNIIR-Progress» (Moscow) P.V. Medvedev - Ph. D. (Eng.), Peter The Great Military Academy of Strategic Rocket Forces (Moscow) V.S. Pavlov - Leading Engineer, OJSC «VNIIR-Progress» (Moscow)