FIELD: physics; radio.
SUBSTANCE: invention relates to radio engineering, particularly to radio direction finding, and can be used in systems for determining direction to radio-frequency radiation sources. An angular spectrum is obtained by introducing a redefined basis through a grid of bearings for formation of a system of linear algebraic equations from the initial system of nonlinear equations and solving the former by creating several target functions and, depending on presented effectiveness criteria, using one multi-criterion mathematical programming method, converting the multi-criterion problem to a single-criterion problem with boundaries, solving the said single-criterion problem through iterative computational procedures, determining point signals of the azimuth α and position angle β for each beam of received multi-beam signal. To determine interval evaluations of point signals based on the Cramer-Rao theorem, a covariance matrix of solutions is used, which is formed using a likelihood function related to the initial system of nonlinear equations.
EFFECT: increased efficiency of determining point estimations of azimuthal and position angles of radio-frequency radiation sources, as well as increased reliability of results due to obtaining interval solution estimations.
2 cl, 1 dwg, 1 tbl
