METHOD FOR ANALOG-TO-DIGITAL SIGNAL PROCESSING Russian patent published in 2023 - IPC H03M1/00 

FIELD: radio engineering.

SUBSTANCE: invention relates to the field of radio engineering. After receiving by the antenna, amplification and transfer to the video frequency, the analog signal is sequentially protected from spectra overlap, sampling, analog-to-digital conversion and filtering are carried out using a digital filter, while narrowing the bandwidth of the analog filter of spectrum overlay protection to the limits from 0.5 Ω_N to 1.0 Ω_N , where Ω_N is the video band of the useful signal, and the weighting coefficients of the digital filter are selected so as to correct the distortions that occur when using the narrowed bandwidth of the analog filter to protect against overlapping spectra, and at the same time the coefficients of the digital filter are adjusted to ensure the specified values of the amplitude-frequency skirt selectivity at the boundary of the operating frequencies and the level of interference suppression in the near spectral zone adjacent to the slope area.

EFFECT: increase in noise immunity by countering the blocking of the ADC operation by high-power interference located close to the frequency spectrum of the useful signal.

1 cl, 8 dwg