| 摘要 |
A receiver may reduce phase noise in phase-encoded communications signals using symmetrical averaging to estimate phase shift correction. In one embodiment, a receiver, such as a quadrature amplitude modulation receiver may include a decision feedback equalizer and a filter of low complexity to receive a phase modulated incoming signal. Using a combination of phase shift difference estimates prior and subsequent to a decision point for the received symbols, the filter may derive another estimate of the phase shift relative to the estimated phase shift by the equalizer.
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