DIGITAL PROCESSING UNIT OF RADAR SIGNALS Russian patent published in 1997 - IPC

FIELD: radiolocation. SUBSTANCE: digital processing unit of radar signals has two phase detectors which tied-up first inputs are input of digital processing unit, two analog-to- digital converter, phase inverter, controlled heterodyne, fast Fourier transform unit which output is output of digital processing unit, meter of radial speed and radial acceleration of aerial target, quasi-optimal filter, digital-to- analog converter and digitization frequency generator. Meter of radial speed and radial acceleration includes two delay lines, two adders, multiplier of complex signals, correlator, phase calculator, scaling amplifier and differentiation unit. Digitization frequency generator incorporates decoder, first, second and third pulse generators, first, second and third AND gates and OR gate. EFFECT: provision for maximum detection range by pulse-Doppler radars of aerial target under various conditions of its flight. 3 dwg