METHOD FOR DETERMINING THE SPEED OF SPREAD AND DIRECTION OF THE ARRIVAL OF IONOSPHERIC PERTURBATION

摘要

A method for determining the propagation velocity and direction of arrival of the ionospheric disturbance, based on the analysis of data on the total electronic content in the Earth's ionosphere, which are obtained as a result of processing signals received by two-frequency receivers by the GLONASS / GPS satellite radio navigation system, followed by the formation of time series of the full electronic content and their filtering in the range of oscillation periods corresponding to the response of the ionosphere to the action of the ionospheric disturbance source, while They call an extended receiving antenna and consecutively test the hypothesis about the values of the direction of arrival and the propagation velocity of the plane front of the ionospheric disturbance before generating the radiation pattern of the receiving array and scanning it in a given sector of the “arrival direction - propagation velocity of the ionospheric disturbance” space by synthesizing the output signal of the receiving array at in-phase summation of the series of variations in the total electronic content of individual lattice elements with temporary shear By calculating from the verified values of the direction of the ionospheric perturbation and the distances traveled by the front of the ionospheric perturbation between the elements of the receiving grating in the direction being checked inside the spherical layer of the Earth’s ionosphere, the decision on the correctness of the hypothesis being tested and the detection of the ionospheric perturbation is made when the total signal exceeds a predetermined threshold level, the corresponding values the directions of arrival and the phase velocity of propagation of the ionospheric disturbance are considered estimated