DEMODULATOR AND PHASE COMPENSATION METHOD FOR IT Russian patent published in 2007 - IPC H04L27/06 

FIELD: digital data transmission, possible use for demodulation and phase compensation.

SUBSTANCE: in the method for compensating demodulator phase, detection is performed of phase shift of received digital signal after semi-synchronous detection for predetermined phase position, compensation of phase of digital received signal by means of first compensation value on basis of detected phase shift, averaging on value of detected phase shift and realization of compensation for phase of signal, compensated with first compensation value, by means of second compensation value on basis of averaged value. Demodulator contains carrier restoration contour, which receives digital signal after semi-synchronous detecting, detects phase shift of digital signal for predetermined phase position and realizes compensation of digital signal phase for first compensation value, and contour for phase compensation with direct communication, which generates average value of detected phase shift and compensates signal phase from output of carrier restoration curve by second compensation value on basis of averaged phase shift.

EFFECT: efficient removal of phase fluctuations.

3 cl, 5 dwg