METHOD OF ESTIMATING ANGULAR PARAMETERS OF IONOSPHERIC SIGNALS Russian patent published in 2014 - IPC G01S3/00 

FIELD: radio engineering, communication.

SUBSTANCE: circular antenna system located on the surface of the earth is further provided with a linear dipole system lying along the vertical to the surface of the earth. The formed antenna system (three-dimensional antenna system), a multichannel receiver, a multichannel analogue-to-digital converter (ADC) and time Fourier transform are used to generate a space-time array of complex data $${\stackrel{\wedge }{E}}_{n,m},$$ which displays field strength values at n points of three-dimensional space (n is the of the dipole) and at the m-th moment in time, with intervals of 1-2 s (index m defines the number of the time sample of data at n dipoles m=1-M+1). The number of time samples of data is one greater than the number of beams M. The method further includes corresponding mathematical processing, filtering single-beam fields from a plurality of fields of the ionospheric signal, forming a beam pattern for each selected field, scanning the beam pattern in the range of estimate maxima and elevation angles and estimating azimuths, elevation angles and amplitudes from the maximum of the beam pattern from M beams of the ionospheric signal.

EFFECT: broader functional capabilities of direction-finding, shorter time for calculating angular parameters of a multi-beam ionospheric signal.

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