METHOD OF GENERATING FOUR-POSITION QUADRATURE PHASE-SHIFT KEYED SIGNALS Russian patent published in 2016 - IPC H04L7/00 

FIELD: radio engineering and communications.

SUBSTANCE: invention can be used in communication systems. Method for forming quadrature signals from the four-manipulation is characterized in that the form of the carrier signal inphase and quadrature oscillation (SO and QO) shifted by 90° one relative to the other, manipulate each oscillation 180° the sequence of binary video signal (BVS) received from the message source, which are offset relative to each other by a half symbol duration, produce a balanced manipulation binary manipulated oscillation wave signal with a frequency equal to half the symbol rate so that the envelope signal is zero at the beginning and end of the each symbol, and then sum them, with the amplitude of the carrier wave pre manipulated by multiplying by the corresponding coefficients.

EFFECT: improving noise immunity generated signals.

1 cl, 2 dwg