METHOD FOR LOCATING SOURCES OF DECAMETER RADIO EMISSION Russian patent published in 2023 - IPC G01S5/02 G01S13/02 

FIELD: radio direction finding.

SUBSTANCE: invention can be implemented in radio monitoring and radar systems for locating a source of decameter radio emission in frequency, azimuth and elevation of an incoming ionospheric radio wave using data from oblique-backward sounding (OBS) of the ionosphere. The claimed method consists in determining the range to a radio emission source (RES) along the leading edge of the OBS diagnostic signal by correcting the elevation angles of the incoming radio wave calculated from the median ionospheric model for various distances from the reception point in the search sector. To do this, the method includes receiving and measuring the azimuth and elevation angle of the ionospheric radio wave from RES, ionospheric OBS in the direction of the radio wave arrival azimuth, highlighting the leading edge of the OBS signal on the ionogram, determining the maximum applicable frequencies (MAF) of oblique sounding on the range grid along the leading edge of the OBS signal, correcting the predicted angular frequency characteristics of slant propagation on the MAF range grid and determining the range to RES in frequency and elevation and calculating the location coordinates.

EFFECT: improved accuracy of the location of sources of decameter radio emission by the goniometer-range method.

1 cl, 4 dwg, 1 tbl