Feed-forward symbol synchronizer and methods of operation therefor
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United States of America Patent
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Apr 20, 2004
Grant Date -
N/A
app pub date -
Sep 6, 2000
filing date -
Sep 6, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A feed-forward symbol synchronizer (200, FIG. 2) samples symbols transmitted within one or more packets that form a burst of radio frequency (RF) energy. The symbol samples (209) are delayed in a data delay buffer (214) while a phase estimate (212) is generated for each packet. A resampler (218) resamples the delayed symbol samples based on the phase estimate, resulting in resampled data (228) that includes one sample per symbol. The resampled data is clocked into a dual-port RAM (230) using a resampling clock that is also based on the phase estimate. The resampled data is then clocked out of the dual-port RAM and into a demodulator (238) using the receiver's symbol clock (232). Also described are methods of operating the feed-forward symbol synchronizer.
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