FIELD: physics; radio.
SUBSTANCE: invention relates to radio engineering, particularly to radar direction finding. Increase in reliability and accuracy of direction finding is achieved by introducing a redefined base through an array of bearings to create from an initial system of nonlinear equations a system of linear algebraic equations and solving this system by minimising the regularising Ip -functional, for which the initial approximation taken can be a solution obtained through Tikhonov regularisation method. Further, the interval estimation of the angular spectrum is determined based on a covariance matrix obtained using Cramer-Rao theorem using the said i-functional as the likelihood function.
EFFECT: increased reliability and accuracy of direction finding during reception of radio signals from several radio-frequency radiation sources operating at a single frequency using antenna systems consisting of weakly directional elements (vibrators), synchronous conversion of the group of received signals, depending on time and umber of the element of the antenna system, into digital signals, conversion of digital signals to an amplitude-phase distribution signal which describes distribution of amplitude and phase on elements of the antenna system, calculation of the phasing function signal.
2 cl, 2 dwg
