| 摘要 |
A method is described for correcting sampling frequency offset (SFO) of a data packet in a communications system where carrier frequency ( f c ) and sampling frequency ( f s ) are driven by a common clock source. The method comprises, for each l th symbol in the data packet, estimating carrier frequency offset (CFO) in a received data packet. From the CFO estimate, an SFO estimate is derived, wherein the SFO is approximately equal to f s multiplied by said CFO estimate, and divided by f c . An SFO phase correction is generated according to the SFO estimate for each k th tone in a data stream. The SFO phase correction is then applied to each received data stream.
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