METHOD OF PROCESSING HF SIGNALS WITH STAGE OF ADAPTIVE FILTERS WITH DIFFERENT RESPONSE WITH COMMON FEEDBACK BY DECISION Russian patent published in 2016 - IPC H03H21/00 

FIELD: electronics.

SUBSTANCE: invention relates to adaptive filtration, in particular to digital signal processing systems, in which for protection against signal distortion adaptive antenna systems are used in communication channel. Signal is processed by a broadband adaptive antenna system (BAAS) operating based on a Wiener algorithm and a minimum mean square error (MMSE) criterion, wherein output signal y(k) from BAAS, which is used as a first stage, is processed with an additional adaptive filter, which is used as a second stage, controlled by a Kalman algorithm, total reference estimation signal for BAAS and additional adaptive filter and error signal (e)₂(k) for additional adaptive filter, generated by difference between total reference estimation signal and output signal with additional adaptive filter, transmitted to a decision circuit, which generates total reference estimation signal , which provides combined control communication between BAAS and additional adaptive filter, wherein size L_II of sliding window of Kalman algorithm is less than size L_I of sliding window of Wiener algorithm controlled by total reference estimation signal and error signal (e)₁(k) for BAAS, generated by difference between total reference estimation signal and output signal y(k) from BAAS.

EFFECT: technical result consists in improvement of quality of processing signals by reducing effect of interference and noise.

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