METHOD OF DETECTING PHASE-MODULATED OSCILLATIONS Russian patent published in 2009 - IPC H03D3/02 

FIELD: radio engineering.

SUBSTANCE: method consists in comparison of results obtained in channels of processing of main and reference sinusoidal signals. At that in the beginning input oscillation in channel is simultaneously differentiated, integrated and multiplied by itself, and then, considering ratio of last signal voltage to voltage obtained by multiplication of integrated signals, ratio result is integrated and combined with signal received by input signal ratio inversion to its differentiated value, result of integration is output voltage of corresponding channel, at that comparison of channels output voltages is performed as difference of corresponding voltages which is proportional to change of phase of input phase-modulated oscillation, i.e. to law of variation of original message. Method of detecting may be implemented both - by software on base of microprocessors or by hardware.

EFFECT: extension of operational frequencies range and reduction of distortion of original signal waveform.

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