RF receiver with frequency tracking
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United States of America Patent
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Jun 12, 2018
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app pub date -
Jan 5, 2017
filing date -
Jan 7, 2016
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Abstract
A robust frequency drift tracking receiver. The received signal is translated to an intermediate frequency in the RF stage by a quadrature demodulator, and is then brought into the base band by a digital mixer made by a CORDIC. A base band processing stage allows for a synchronization of the receiver relative to the data frame, to estimate data and to output a counter-reaction signal to the CORDIC, obtained by integration of successive frequency corrections, with a predetermined step.
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