METHOD FOR DETERMINING THE GEOGRAPHICAL COORDINATES OF RADIO EMISSION SOURCES IN A MULTI-PURPOSE ENVIRONMENT Russian patent published in 2022 - IPC G01S13/46 

FIELD: radio engineering.

SUBSTANCE: invention relates to radio engineering, namely to methods for determining the location of radio emission sources (RES), and can be used in navigation, direction finding, location means to determine the coordinates of the RES from a flight-lifting vehicle (FLV), in particular from an unmanned FLV. The claimed method provides a reduction in computational costs by performing basic calculations in a geographical coordinate system with a minimum number of references to trigonometric functions with the complete exclusion of the use of geocentric coordinates. The proposed algorithm for searching for local control points, in the vicinity of which the maximum number of measured bearings passes, allows us to correctly estimate the number of local maxima of the likelihood function in the search area and reduce the likelihood of false RES. In addition, maximizing the likelihood function in a multidimensional space of coordinates and probabilities of detecting RES makes it possible to determine with maximum accuracy the coordinates of several RES indistinguishable by signal parameters, detected during observation, as well as to obtain a comparative assessment of the intensity of their work.

EFFECT: increase in the accuracy and reliability of determining the geographical coordinates of radio emission sources with a reduction in time costs, reducing the likelihood of false RES, providing the possibility of a comparative assessment of the intensity of the detected RES.

1 cl, 4 dwg, 1 tbl