Frequency offset estimating method and frequency offset correcting apparatus utilizing said method
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United States of America Patent
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N/A
Issued Date -
Jun 8, 2006
app pub date -
Dec 7, 2005
filing date -
Dec 7, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A frequency offset correcting unit estimates an initial frequency offset and corrects the estimated initial frequency offset. Then the frequency offset correction unit also corrects frequency offsets by incorporating residual components of the frequency offsets. A receiving weight vector computing unit computes receiving weight vector signals by use of LMS algorithm. Then the receiving weight vector computing unit estimates residual components of frequency offset contained in pilot signals by applying LMS algorithm to the pilot signals. Multipliers weight frequency-domain signals with the receiving weight vector signals, and an adder sums up the output of the multipliers so as to output a combined signal.
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