Fractionally-spaced adaptively-equalized self-recovering digital receiver for amplitude-phase modulated signals
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United States of America Patent
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Oct 31, 2000
Issued Date -
N/A
app pub date -
Jun 28, 1999
filing date -
Jan 23, 1996
priority date (Note) -
Expired
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Abstract
A fractionally-spaced adaptively-equalized self-recovering digital receiver includes a fractionally-spaced adaptive filter for equalizing channel distortion which includes means for adaptively adjusting the coefficients of the fractionally-spaced filter with a self-recovering (blind) algorithm or a decision directed algorithm; means for changing the timing at which the data is sampled; means for estimating the sampling frequency offset in order to derive the optimal timing; means for synchronizing the signal resampling at the symbol rate using the statistics of the received data samples; means for evaluating the profile of the equalizer coefficients; and means for tracking carrier frequency offset.
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