FIELD: physics.
SUBSTANCE: invention relates to adaptive filters in frequency domain with division into blocks. In the adaptive filter, the representation in the frequency domain of the input signal in the time domain is filtered depending on a set of filter coefficients consisting of a plurality of filter coefficient blocks, in order to create a filtered signal, wherein the filter comprises a plurality of parallel-arranged filter updating units, wherein each of the filter updating units is configured to update one of the filter coefficient blocks based on the update signal, collected by circular correlation of representation signal unit in frequency domain and control signal in frequency domain containing representation of filtered signal.
EFFECT: technical result consists in wider range of the same purpose tools.
11 cl, 12 dwg
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