METHOD FOR MULTIPULSE MEASUREMENT OF BEARING OF RADIO SIGNAL SOURCES Russian patent published in 2008 - IPC G01S13/44 G01S3/02 

FIELD: radio engineering, applicable for determination of the bearing of radio signal sources in the radio monitoring systems.

SUBSTANCE: the method is based on reception of the signal of the radio emission source by two aerials, whose focal axes are parallel, and the centers of the aerial aperture are distributed, measurement of the phase difference of the received signals at the aerial outputs, the received signals are transformed to signals of an intermediate frequency, approximately by 40 times lower than the frequency of the received signals, the difference of the phases of the intermediate frequency signals is measured, an approximate estimation of bearing θ_a to the source of radio emission is perforated, all the values of the bearing (or a part of them) are calculated, and the nearest of them to estimation θ_a is taken as the bearing to the radio emission source.

EFFECT: the ambiguity of the results of direction finding is eliminated at conservation of the accuracy of the direction finding in the preset sector of 180° without any increase of the number of the aerials and channels of processing of the received signals.

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