Patent ID: 9136979
Filing Date: 2015-09-15
Classification: H04L

Abstract:
1. A carrier wave reproduction device including an interpolation filter which estimates a phase error of a received symbol based on a pilot symbol included in the received symbol, a first phase rotator which rotates the phase of the received symbol according to the phase error estimated by the interpolation filter and outputs the received symbol as a first output symbol, a phase error compensation unit which compensates for the phase error which remains in the first output symbol and outputs the first output symbol as a second output symbol, a Quadrature Amplitude Modulation (QAM) symbol demapping unit which calculates a first bit string corresponding to the first output symbol and calculates a second bit string corresponding to the second output symbol, and an error correction decoder which performs error correction of a bit error in the first bit string and wherein the phase error compensation unit compensates for the phase error which remains in the first output symbol by referring to the first bit string after error correction.