FIELD: radio engineering, communication.
SUBSTANCE: implementation of the signal decimation operation is carried out in the FFT unit (direct Fast Fourier Transform) of the increased dimension, NL, where L=2m. The FFT unit is configured to generate a parallel data stream at the K outputs, and its other NL-K outputs are not involved.
EFFECT: creation of a digital OFDM demodulator with decimation of the sample frequency with a simpler design with fewer discrete logic elements, and with a lower power consumption, by reducing the order of the channel digital filters I and Q and eliminating the I and Q channels from the decimator design.
2 cl, 3 dwg
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