SIGNAL-LIKE INTERFERENCE COMPENSATOR Russian patent published in 2023 - IPC H04B1/12 H04B15/00 G01S19/21 

FIELD: radio engineering.

SUBSTANCE: invention can be used in receivers of global navigation satellite systems. A tracking circuit is additionally introduced for the second meander of the signal-like interference and the seventh, eighth, ninth and tenth multipliers into the channels for generating a copy of the interference of the signal-like interference compensator. As a result of multiplication in the tenth multiplier, the generated copy of the interference is additionally modulated by a meander, synchronous in time with the meander of the detected interference. The generated copy of the interference is fed to the adder, in which the detected copies of signal-like interference are added. The sum of copies of signal-like interference is fed to the subtractor, where the sum of the corresponding copies of interference is subtracted from the input additive mixture of the navigation signal and the sum of signal-like interference.

EFFECT: increased probability of detecting signal interference with modulation at two subcarrier frequencies and reduced power level of signal-like interference leading to an increase in the signal-to-interference ratio, by reproducing a copy of this interference, taking into account the delay time and then subtracting the copy of interference.

1 cl, 1 dwg