DIFFERENCE-RANGE-FINDING METHOD FOR DETERMINING COORDINATES OF RADIO-FREQUENCY SOURCE AND DEVICE FOR REALIZING SAID RADIATION Russian patent published in 2020 - IPC G01S3/46 G01S5/12 

FIELD: physics.

SUBSTANCE: group of inventions relates to radio engineering and can be used in multi-position radio systems for determining coordinates of a given radio-frequency radiation source with code and time division of channels. Technical result in the method is achieved due to determining at the preparatory stage centers of elementary sections of the monitored area (X_i, Y_j), based on which a matrix of coordinates is formed, for each element (X_i, Y_j) of all K measurement bases, peripheral receiving point (PRP) – central point of receiving and processing (CPRP), determining reference values of the difference in the reception time of the signal τ_{i, j, k}, forming K reference matrices, the elements of each of which is the reference value τ_{i, j, k} corresponding to coordinates (X_i, Y_j)τ, based on the considered set of operations for memorizing and analyzing received signals only emit radiation predetermined RFS was calculated k cross-correlation function (CCF) for the respective measurement bases k correlation matrices formed by replacing the elements τ_{i, j, k} matrices reference to their respective measured CCF values, point (X_i, Y_j) corresponding to the maximum value of the element of the total correlation matrix is received for the most probable location of the given RFS. Device implementing the method, in order to achieve said technical result, additionally comprises four analogue-to-digital converters introduced into a central processing station, a control unit, an analysis path, four memory units, a clock generator, a computer, a correlation matrix formation unit, a reference matrix formation unit, a coordinate matrix formation unit, an adder and a decision unit with corresponding links.

EFFECT: technical result is higher accuracy of location of preset RFS.

3 cl, 23 dwg