Closed loop power control for a wireless transmitter
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United States of America Patent
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Jul 8, 2014
Grant Date -
Oct 25, 2012
app pub date -
Apr 20, 2012
filing date -
Apr 22, 2011
priority date (Note) -
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Abstract
Embodiments of the present disclosure provide systems and methods for estimating gain and phase error in a wireless transmitter. Embodiments of the present disclosure provide a gain and phase controller that uses a digital gain and phase estimator to jointly estimate both gain and phase. The forward and feedback signals of a wireless transmitter are digitized using analog to digital (ADC) converters. The digital signals are correlated with each other to dynamically extract gain and phase estimates of the loop. The gain and phase estimates are used to correct gain and phase errors in the wireless transmitter.
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