Iterative sequential carrier acquisition
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United States of America Patent
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Issued Date -
Oct 2, 2008
app pub date -
Mar 27, 2007
filing date -
Mar 27, 2007
priority date (Note) -
Abandoned
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Abstract
A system and method for iterative sequential carrier acquisition for estimating and correcting large carrier frequency offsets without adding significantly to receiver complexity or preamble length. A coarse frequency estimation is performed during a brief carrier acquisition phase that is completed during a reasonably short preamble, and then the system hands frequency control to the nominal carrier frequency & phase tracking of a phase-locked loop (PLL) circuit. The present disclosure generally includes an initialization mode, a pre-lock scan mode, an iterative search mode and a termination mode.
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