METHOD FOR SIMULATING IONOSPHERIC PROPAGATION OF SIGNALS WITH SPATIAL AND/OR POLARIZATION DIVERSITY OF ANTENNAS AND SIMULATOR FOR ITS IMPLEMENTATION Russian patent published in 2025 - IPC H04B7/02 

FIELD: radio communication.

SUBSTANCE: invention relates to radio communication and is intended for simulating short-wave (SW) channel signals, particularly ionospheric. When simulating ionospheric propagation of signals with spatial and/or polarization spacing of short-wave antennas for conducting laboratory research of receiving-transmitting equipment, based on the formation of an initial radio signal with a bandwidth of up to 1 MHz, simulation of its propagation taking into account fading in the investigated communication channel by changing the complex amplitude of the signal according to a random law, receiving the signal by means of the investigated equipment, generating M output signals for N*M communication channels, where N is the number of the investigated transmitters, and M is the number of receiving points of the investigated signal, fading in each of the N*M radio wave propagation channels is simulated by changing the complex amplitude of the signals according to a random law, spatial and/or polarization spacing of output signal sources is simulated by changing the degree of their correlation by changing the ratios of their powers and phases, after which the received signals from N sources are summed up in each of M receiving points.

EFFECT: creation of a multichannel model of radio wave propagation, which expands the capabilities of modelling spatial and/or polarization spacing between separate transmitting and/or receiving antennas of less than 10 wavelengths, including for modes other than simplex mode of operation, such as duplex mode, spatial noise compensation, direction finding.

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