DIGITAL INTERFERENCE SELF-COMPENSATOR Russian patent published in 2005 - IPC

FIELD: suppression devices used in radio-engineering systems for suppression of signals (interferences) incoming via the side lobes of the antenna directional pattern.

SUBSTANCE: the digital interference self-compensator has the series-connected first auxiliary antenna, first complex conjugation device, first multiplier, first sample adder, divider, second complex conjugation device, second multiplier and the first subtracting device, whose second input is connected to the output of the main antenna, series-connected second auxiliary antenna, third multiplier, second sample adder, whose output is connected to the second input of the divider; the second inputs of the first and second multipliers are connected to the output of the first auxiliary antenna, and the second input of the third multiplier is connected to the output of the first complex conjugation device, the second and third subtracting devices, the inputs of the first complex conjugation device, first and second multipliers are connected to the output of the third subtracting device, whose inputs are connected to the outputs of the first and second auxiliary antennas, the input of the third multiplier is connected to the output of the second subtracting device, whose inputs are connected to the outputs of the main and auxiliary antennas, the input of the first subtracting device is disconnected from the main antenna, connected to the output of the second subtracting device, and the output of the first subtracting device serves as the output of the interference suppression device.

EFFECT: eliminated suppression of useful signal at the output of self-compensator.

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