METHOD FOR PROCESSING SIGNALS IN AN ADAPTIVE ANTENNA ARRAY WHEN RECEIVING CORRELATED SIGNALS AND INTERFERENCE Russian patent published in 2022 - IPC H01Q3/26 H01Q21/00 H04B7/08 

FIELD: radio engineering.

SUBSTANCE: invention relates to the field of radio engineering and communications, and can be used in radio location, radio navigation, and radio communication systems operating in a complex interference environment. In the implementation of the proposed method for processing signals in an adaptive antenna array, when correlated signals and interference are being received, the following sequence of operations is performed: the signals received by each Nth channel of the adaptive antenna array for the set position of maximum of the antenna pattern, wherein said signals constitute a combination of a useful signal, interference, and noise, are divided by power into the passed and branched parts - 1; the signals corresponding to the passed part of power are summed in N complex signal weighting blocks with the obtained complex weighting coefficients in channels of the antenna elements - 2; based on the signals corresponding to the branched part of power, a covariance matrix is formed, reversed, and a direction-finding characteristic is formed based on super-resolution methods, such as the Capon method or the "heat noise" method - 3; based on the direction-finding characteristic, a weighting coefficient vector corresponding to the useful signal is formed and subtracted from the signals corresponding to the branched part of power by the corresponding channels - 4; a covariance interference matrix is formed from the signals wherefrom the useful signal component is excluded, said matrix is reversed, and the complex weighting coefficient vector optimal for the adaptive antenna array by the criterion of the maximum of the signal/(interference+noise) ratio is found - 5; signals from N complex signal weighting blocks are summed, forming the output signal of the adaptive antenna array - 6.

EFFECT: increase in the effectiveness of suppressing the interference correlated with a useful signal, the direction of arrival whereof is exactly unknown apriori, in an adaptive antenna array.

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