METHOD FOR BANDPASS DISCRETE ANALOG FILTERING Russian patent published in 2023 - IPC H03H19/00 

FIELD: signal processing.

SUBSTANCE: filtering (detection) of a signal in conditions of strong interference for spectrum analysis. To do this, in the method of bandpass discrete-analog filtering: set the frequency of the clock generator, which determines the tuning frequency of the bandpass discrete-analog filtering; provides an input analog signal; supplying clock pulses from the clock generator to the input switch; the input signal is switched in the input switch in accordance with the clock pulses; the output signal is removed, characterized in that: clock pulses are supplied from the clock generator to the input switch and the output switch; in the input switch, in accordance with the clock pulses, the input signal is switched one by one to all low-pass filters; the output signal in the output switch is removed from the low-pass filters, synchronously and in phase with the switching in the input switch; remove the output signal from the output switch.

EFFECT: improving the separation of periodic signals from the signal-noise mixture.

1 cl, 4 dwg