FIELD: radio engineering, applicable in devices for monitoring and analysis of noise-like phase-shift keyed signals. SUBSTANCE: the receiver has series-connected rejection filter, comprising a whitening filter and two rejection ones, multiplier, whose second input via a mixer is connected to the output of the rejection filter. The second input of the mixer is connected to the local oscillator output. The multiplier output is connected to the joint inputs of the first, second, third and fourth band-pass filters, whose outputs serve as device outputs and at the same time are connected respectively to the first, second, third, fourth amplitude detectors, whose inputs are connected to the adder inputs. The adder output is connected to threshold unit, whose output serves as a device output. EFFECT: enhanced noise immunity at action of narrow-band noise. 3 dwg
