Phase detection in digital communication receivers
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United States of America Patent
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Dec 17, 2013
Grant Date -
May 2, 2013
app pub date -
Nov 1, 2011
filing date -
Nov 1, 2011
priority date (Note) -
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Abstract
According to various embodiments, apparatus and methods disclosed herein include computing phase error of a received signal based on an estimate of a first component (e.g., in-phase component) of a transmitted signal and an analytic representation of the estimate of the first component of the transmitted signal. The analytic representation of the estimate of the first component of the transmitted signal may represent an estimate of a second component (e.g., quadrature phase component) of the transmitted signal. The analytic representation of the estimated first component may be computed using at least one of a Hilbert transform or Fourier transform on the estimated first component of the transmitted signal.
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