OFDM frame synchronisation algorithm
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United States of America Patent
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Apr 27, 2010
Grant Date -
Oct 21, 2004
app pub date -
Apr 15, 2004
filing date -
Apr 17, 2003
priority date (Note) -
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Abstract
A synchronization pulse representing a symbol boundary in a signal such as an OFDM signal is obtained by deriving a first signal representing the difference between the amplitudes of samples separated by the useful part of an OFDM symbol, a second signal representing the phase difference between the samples, and combining the first and second signals to derive a resultant signal. The resultant signal is examined and the synchronization pulse generated in response to the signal changing in a predetermined manner.
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