METHOD FOR POLARIZATION DIRECTION FINDING OF RADIO SIGNALS USING A TRI-ORTHOGONAL ANTENNA SYSTEM Russian patent published in 2020 - IPC G01S5/04 

FIELD: radio engineering and communications.

SUBSTANCE: invention relates to radio engineering and can be used in systems for detection and direction finding of radio-frequency sources (RFS) under conditions of a priori uncertainty relative to polarization and spatial parameters of radio signals, noise and interference, when restrictions on overall dimensions of direction-finding antenna system are imposed. Method is based on CTOAS measurement of orthogonal components E_x1, E_Y1, E_z1 and H_x1, H_y1, H_z1 vectors of electric and magnetic fields intensity and at the moment of time t₁, determining orientation of vectors and in space, constructing auxiliary planes Ω_E and Ω_H, determining azimuth θ and elevation angle β on RFS as angles of orientation of intersection line of auxiliary planes Ω_E and Ω_H.

EFFECT: reduction of direction finding time and provision of a wider field of application of the developed method based on use of a combined tri-orthogonal antenna system (CTOAS), consisting of three antenna elements in form of asymmetrical dipoles of pin-type and three frame antenna elements.

1 cl, 11 dwg