| 摘要 |
FIELD: radio engineering. SUBSTANCE: invention is related to radio reception equipment processing pulse-Doppler signals and can be used in radar systems with bundle sounding signal, possessing large number of pulse repetition frequencies changing from bundle to bundle. Multichannel correlation-receiving facility has compensator of spectral interference lines and multichannel facility for correlation-filtration processing of received signals of pulse-Doppler radar connected in series, multichannel synthesizer of tunable equidistant network of heterodyne frequencies and generator of weighting function. Compensator of spectral interference lines carries in forward channel algebraic adder, wide-band filter, modulator and first amplifier connected in series and in compensation channel multichannel heterodyne-tunable narrow-band comb filter, second amplifier and phase inverter connected in series. Each channel of multichannel heterodyne-tunable narrow-band comb filter has first analog multiplier, narrow-band filter and second analog multiplier connected in series. EFFECT: increased noise immunity of forward path, enlarged dynamic range and decreased requirements to characteristics of single-band filter. 3 dwg |
