FIELD: communication system.
SUBSTANCE: invention relates to communication systems and can be used as a phase-error compensation device of a carrier recovery device for a demodulator used in quadrature amplitude modulation communication systems. Phase error compensation device includes first and second filters that generate phase difference values and a phase error estimate value in the forward and reverse sequences of the received symbols, respectively, a phase error addition means that generates a phase error estimate value based on the phase error estimate values and one of the phase difference values and a phase error compensation means in the received symbols based on the phase error estimate obtained in the addition means.
EFFECT: increasing the throughput and improving the quality of data transmission by reducing the frequency of erroneous bits in an unfavorable noise environment, mainly due to phase noise or thermal noise.
10 cl, 20 dwg
