DEVICE FOR DETERMINING DIRECTIONS TO RADIO-FREQUENCY SOURCES Russian patent published in 2017 - IPC G01S5/04 

FIELD: radio engineering, communication.

SUBSTANCE: device consists of an antenna array having K antenna elements, a switch, a controller, a generator, a covariance matrix calculating unit, a covariance matrix determining unit with a noise term correction, a spatial spectrum calculating unit, a unit for estimating direction to the radio-frequency sources and K direction finding channels, each of which consists of a low-noise amplifier, a multiplier, an intermediate frequency amplifier, an analog-to-digital converter. The listed means are connected to each other in a certain way.

EFFECT: spatial resolution of signals with a decrease in their levels due to the reduction of intrinsic noise in the channels of the direction finding system.

3 dwg, 1 tbl