Mazurenko O. Three-dimensional spatial signals division methods in wireless telecommunications

The dissertation is dedicated to solving important scientific and applied problems, that consist in improving the technical efficiency of spectrum resource usage by wireless systems of discrete signals transmitting in communication channels with constant parameters. The method of spatial matched filtration is improved by introducing a unified mathematical model of discrete radiators system directional characteristics in the Rayleigh, the Fresnel and the Fraunhofer field diffraction areas, mathematical model of the focused antenna arrays focal areas at any angular directions in the azimuth and elevation planes characteristics. High resolution by the distance achieving methods for discrete radiators systems with spatial matched filtration, based on consideration of the amplitude-frequency characteristics and the modified amplitude-phase distributions of radiated signals are proposed. The method of spatial correlation signal processing is improved by introduction of the concept of signals time-domain correlation properties into space-domain translating (signals selection by spatial distribution), which enables to realize the concept of space-time matched transceiving. The new method of spatial multiplexing using a single antenna system for transceiving and the principle of construction and operation of multiple antennas MIMO technology, based on principles of spatial correlation signal processing are proposed.