METHOD AND DEVICE FOR DETERMINING COORDINATES OF A RADIO EMISSION Russian patent published in 2016 - IPC G01S5/04 

FIELD: radio engineering.

SUBSTANCE: invention relates to radio engineering and can be used for determining coordinates of radio-frequency sources in ultrashort-wave (VNF) and a microwave (SHF) ranges of radio waves using narrow-band signals. Specified result is achieved because the synthesis algorithm of a difference aperture is used, which allows to eliminate the effect of instability of the phase of the transmitter, and also to consider the modulation of RFS signal. Specified result is achieved also by optimization of flight route of carriers of main (MP) and external (EP) positions of the passive locator, as well as by the fact the ground station of management (GSM), by commands of which carry out simultaneous synchronous reception of signals of RFS by antenna-receiving modules MP and EP and formation of quadrature components of signal envelopes and their transmission to GSM together with data on time of reception signal and spatial position of phase centers of receiving antennas, formation on their basis of difference of trajectory values S(t_i) by pairwise multiplication of quadrature signal components S₁(t_i), received at MP at a time t_i with appropriate complex conjugate values of quadrature components of signal, received in the EP at a time t_i, finding based on S(t_i) obtained at the interval of synthesizing I·Δt, location of RFS using method of matched processing. Method is realized using a device made in a certain manner.

EFFECT: achieved technical result - ensuring increase of accuracy of determining of coordinates of radio-frequency sources (RFS) in the VNF-SHF-ranges of radio waves.

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