METHOD OF DETERMINING PROPER LOCATION OF OBJECT IN SPACE Russian patent published in 2024 - IPC G01C21/08 G01R29/08 G01S1/08 G01S13/06 

FIELD: radio engineering.

SUBSTANCE: invention relates to radio engineering, namely to passive radio monitoring systems, and can be used in systems for monitoring proper location of a navigation object as an alternative method of determining coordinates, in particular, in conditions of malfunction or failure of a receiver of signals of global navigation satellite systems (GLONASS, GPS, etc.). In the disclosed method, the navigation object proper location in space is determined by receiving radio signals from N≥2 independent radio-emitting objects with known coordinates using a tri-orthogonal frame antenna system (TOFAS) installed on a navigation object and measuring triplets of orthogonal components using it at times t₁ and t₂ H_x,n(t₁), H_y,n(t₁), H_z,n(t₁) and H_x,n(t₂), H_y,n(t₂), H_z,n(t₂), electric field strength vectors H_n(t₁) and H_n(t₂) of received signals from independent radio-emitting objects with known coordinates. Further, orientation angles of TOFAS in space are measured, orientation of electric field intensity vectors H_n t(t₁) and H_{n t}(t₂) in the topocentric DCS OXYZ taking into account the measured orientation angles of TOFAS ξ_α, ξ_β, ξ_γ. Auxiliary planes are formed Ω_n(t₁) and Ω_n(t₂) so that they are perpendicular to vectors H_{n t}(t₁) and H_{n t}(t₂) and passed through corresponding radio-emitting objects with known coordinates. Object location lines l_n are determined at intersections of said planes and coordinates of navigation object proper location are calculated as points of object location l_n intersection.

EFFECT: wider field of use of the navigation system with high accuracy of determining the proper location of a navigation object by providing polarization matching between the receiving antenna system and the field of the incoming electromagnetic wave from radio-emitting objects with known coordinates.

2 cl, 4 dwg, 1 ex