Scientific and technical basis for the construction of new over-the-horizon communication systems using relay air platforms and artificial formations

The main result is the development of the concept of scientific and technical foundations for the creation of new high-speed over the-horizon communication systems (SPZ) with variable architecture using reference stations for tropospheric communication and relay intelligent air platforms and artificial formations. The concept is based on the use of new technologies of cognitive and software defined radio, cooperative relaying, M2M, digital signal processing, support of highly effective methods of adaptation to changing working conditions that arise both as a result of complex fading and as a result of the structural organization of telecommunication systems of the 4th and 5th generation. In this case, in particular, the following was obtained: structural and functional principles of building new heterogeneous over-the horizon communication systems, structuring of objects and nodes of such a system; structural and functional principles of building a system of self-organization and group interaction of air platforms in the constellation, taking into account the M2M approaches; technical requirements for the equipment of the SPZ units; mathematical models of bandwidth and noise immunity of SPZ channels, the architecture of which supports system layering, retransmission and mesh-structuring; the results of studies of specific patterns of tropospheric scattering on atmospheric inhomogeneities and on artificial formations in order to determine the boundaries of a possible expansion of the operating frequency bands of radio channels and ways to combat daily inversions of tropospheric layers; ways and methods of attracting artificial passive interference in the troposphere for directional reflection of the radio signal of a ground station in order to create a long range relay radio link; methods of increasing the energy and spectral efficiency of digital communication systems on small air platforms.