FIELD: radio engineering, communication.
SUBSTANCE: invention relates to radio engineering and can be used in different digital signal processing systems. A phase-shift keyed signal detector includes an input band-pass filter, a frequency multiplier, a narrow-band signal filter, a signal detector, a narrow-band noise filter, a noise detector and a decision device.
EFFECT: high reliability of detecting a phase-shift keyed signal owing to increase in signal strength relative to noise level at the output of the device and estimation of the noise level to generate a decision threshold for presence of a signal.
5 dwg
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