P.F. Denisenko - Dr. Sc. (Phys.-Math.), Professor, Head of Department of radiophysics and space research, Research Institute of Physics SFU (Rostov-on-Don). E-mail: denis@ip.rsu.ru
N.A. Koledin - Post-graduate Student, Faculty of physics, Southern Federal University (Rostov-on-Don)
V. A. Gluskin1
1 Central Scientific Research Institute of All-Union Combined Arms and Space Forces
of the Ministry of Defense of the Russian Federation (Korolev, Russia)