RADIO RECEIVER FOR DETECTING PHASE-SHIFT KEYED BROADBAND SIGNALS Russian patent published in 2015 - IPC H04L27/22 

FIELD: radio engineering, communication.

SUBSTANCE: radio receiver for detecting phase-shift keyed broadband signals comprises a preselector 1, a frequency converter 2, first 3 and second 17 intermediate frequency amplifiers, band-pass filters 4.i and 5.i, a nonlinear element 6.i, a narrow band-pass filter 7.i, an envelope detector 8.i, switches 9.i (i=1, 2, … n), a decision unit 10, an adder 11, a recording unit 12, first 13 and second 14 mixers, first 15 and second 16 heterodynes, a correlator 18, a threshold unit 19, a switch 20, a multiplier 21, first 22 and second 24 narrow band-pass filters, a phase doubler 23, a phase detector 25 and an inverted amplifier 26.

EFFECT: high noise-immunity and reliability of detecting phase-shift keyed broadband signals.

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