METHOD FOR POLARIZATION DIRECTION FINDING OF RADIO SIGNALS USING A TRI-ORTHOGONAL ANTENNA SYSTEM Russian patent published in 2019 - IPC G01S5/04 

FIELD: radio equipment.

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 measurement using tri-orthogonal frame antenna system (TOFAS) of orthogonal components H_x1, H_y1, H_z1 and H_x2, H_y2, H_z2 vectors of magnetic field intensity and at time t₁ and t₂, determining orientation of vectors and in space, constructing auxiliary planes Ω₁ and Ω₂, determining azimuth θ and elevation angle β on RFS, as inclination angles of intersection line of auxiliary planes Ω₁ and Ω₂.

EFFECT: high accuracy of direction-finding based on use of TOFAS, having higher mechanical strength and resistance to vibration loads compared to tri-orthogonal antenna system, consisting of antenna elements in form of asymmetrical dipoles of pin type.

1 cl, 8 dwg