METHOD FOR DETERMINATION OF SPATIAL ANGULAR COORDINATES OF RADIO SIGNAL IN AMPLITUDE MONOPULSE PELENGAGE SYSTEMS Russian patent published in 2017 - IPC G01S13/44 

FIELD: radio engineering, communication.

SUBSTANCE: essence of the method consists in receiving the signal N of ray beam pattern (BP) of the antenna system (AS), orientation and rays number N of which allows simultaneous covering of their BPs of the entire area of keepout, detection of signals and measurement of their amplitudes for all N reception channels, among which the maximum is found and the corresponding number of the ray is stored, relative to which ratios of the amplitudes of other rays signals are determined. To form estimates of signal angular coordinates, the keepout is preliminarily divided into discrete elements, each of which is characterized by a pair of angular coordinates and corresponding signal amplitude values for all BP N rays relative to the maximum for a given pair. For the obtained set of relations for each of keepout discrete elements, the best coincidence of relationships with their measured values is determined for identical numbers of rays with maximum amplitudes using the least squares method, where coordinate estimates are the coordinates of discrete element corresponding to this case.

EFFECT: provision of non-search in the direction of signal spatial angular coordinates determination under the conditions of contradiction between angular dimensions of keepout and raywidth of antenna directivity beam pattern, necessary to ensure a given accuracy of direction finding.

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