| 摘要 |
<p>Embodiments of the present invention provide a method and an apparatus for correcting a frequency offset. The method for correcting a frequency offset includes: receiving n channels of first signals, where n is a positive integer; performing frequency offset correction processing on the n channels of first signals to obtain n channels of first corrected signals; acquiring n center tap coefficients of a space time equalizer that corresponds to the n channels of first corrected signals, n first output phases of a phase-locked loop phase detector that corresponds to the n channels of first corrected signals, and N' a second output phase of a phase-locked loop phase detector that corresponds to a superposed signal, where the superposed signal is a signal that is obtained after the n channels of first corrected signals are superposed one by one; acquiring n first estimated frequency offset values according to the n center tap coefficients and N' the n first output phases; acquiring a second estimated frequency offset value according to the second output phase; and receiving n channels of second signals, and N' performing frequency offset correction on the n channels of second signals according to the n first estimated frequency offset values and N' the second estimated frequency offset value.</p> |
