METHOD AND DEVICE FOR SPATIAL SELECTION OF ELECTROMAGNETIC WAVES WITH SUBSEQUENT POLARIZATION PROCESSING OF SIGNALS Russian patent published in 2020 - IPC G01S3/08 G01V3/12 

FIELD: radio equipment.

SUBSTANCE: invention relates to radio engineering, in particular to methods of measuring polarization parameters and arrival direction of electromagnetic wave, and can be used in processing radio signals in multi-channel radio receiving channels for measuring spatial-polarization parameters and depolarisation of electromagnetic waves. Technical result is achieved due to that orthogonal electromagnetic field components are received, after which filtration is performed for each channel successively, amplification, digitization, quadrature conversion and conversion into frequency domain by means of fast Fourier transformation and thereby obtaining complex components, which are transmitted to unit of normal vector determination to polarization plane, in which its components are calculated and then transmitted to a unit for determining angular coordinates of the arrival direction of the electromagnetic wave, in which the azimuth ϕ and the elevation angle θ are calculated, after which if the calculated values ϕ and θ fall within the predetermined intervals, then processing input signals and then determining proper rotation angle ϕ_z (angle of inclination of the major axis of the ellipse), after which amplitude-phase displacements caused by inclination of the polarization ellipse are compensated, coefficient of ellipticity is determined and at the final stage depolarization of information (useful) signal is performed.

EFFECT: technical result of invention is to increase energy availability of electromagnetic waves source, to ensure spatial-polarization coherence of antenna-receiving path, to increase accuracy of determining direction of arrival of electromagnetic wave.

9 cl, 9 dwg