METHOD OF DETERMINATION OF COORDINATES OF RADIO-FREQUENCY RADIATION SOURCE - REPEATER JAMMER AND METHOD OF DETERMINATION OF COORDINATES OF TARGETS IRRADIATED WITH REPEATER JAMMER Russian patent published in 2014 - IPC G01S7/38 

FIELD: physics, navigation.

SUBSTANCE: group of inventions relates to the field of radiolocation and can be used in surveillance radars. The result by the first independent item of the formula of the invention is achieved by that the offered method of determination of coordinates of the radio-frequency radiation source (RFRS) of the repeater jammer (RJ) is based on reception of the direct signal of RFRS and reflected from the target, measuring of time shift of these signals, measuring of angular coordinates of RFRS and the target, ranging the target by an active method and evaluation of the range up to RFRS, meanwhile RJ is used as RFRS, repeater jamming is induced by radiation of the sounding signal, the signals, matched with it and reflected by the purpose, are received from RJ. The named result by the second independent item of the formula is achieved by that the offered method of determination of coordinates of the targets irradiated by an external radio-frequency radiation source (RFRS) - repeater jammer (RJ) with its known coordinates, is based on reception of the signals direct from RFRS and reflected by the targets, measuring of time shift between them, measuring of angular coordinates of the targets, evaluation of range up to them, meanwhile RJ is used as RFRS, the repeater jamming is induced by radiation of the sounding signal with the level, sufficient for its detection, the signals, matched with it, are received from RJ and from angular directions n≥1 reflected by the targets, for clarification of RJ location in active mode the range is measured at least up to one of these targets, in case of its deviation from the calculated range RJ coordinates are clarified, on the basis of which the ranges to the targets are recalculated, the RJ location is clarified in case of detection of change of its angular coordinates.

EFFECT: ensuring of radar functioning in passive mode of area surveillance.

3 cl