DEMODULATOR OF COMMUNICATION SYSTEM WITH DOUBLE PHASE MODULATION Russian patent published in 2011 - IPC H04L27/22 

FIELD: information technologies.

SUBSTANCE: demodulator of communication system with double phase modulation comprises four multipliers, two limiters, a quadrature phase changer, two low pass filters, a summator, a loop filter, a subtraction device, an analogue-digital converter (ADC), an N-channel calculator-analyser of generalised spectrum of beating signal, a channel number calculator, a channel number converter into voltage (DAC), a frequency-controlled generator.

EFFECT: provision of device operation possibility under conditions of high uncertainties by frequency and extremely low input signal-noise ratios due to quick calculation and compensation of detuning between frequencies of input and output signals.

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