NON-INTEGER OVERSAMPLED TIMING RECOVERY FOR HIGHER ORDER QUADRATURE MODULATION COMMUNICATION SYSTEMS USING QUADRATURE-PHASE SAMPLES
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United States of America Patent
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Apr 19, 2016
Grant Date -
Apr 28, 2016
app pub date -
Oct 28, 2014
filing date -
Oct 28, 2014
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Abstract
Apparatus and method for performing entirely digital timing recovery for high bandwidth radio frequency communications. The received digital data source can be sampled from any (minimum 2×) non-integer oversampled transmitted data. This method re-samples the data through interpolation and phase adjustment. The output phase error adjusts the receiver's Analog-to-digital Convertor sampling clock to improve synchronization with the transmitter's Digital-to-analog Convertor clock phase, thus improving transmitted symbol recovery.
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