Method and System for Closed Loop Pre-Distortion for PSK/QAM Modulation Using Feedback from Distant End of a Link
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United States of America Patent
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Dec 22, 2011
app pub date -
Aug 31, 2011
filing date -
Jul 21, 2011
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Abstract
A method of signal distortion correction in a telecommunications channel, the method comprising modeling predicted signal distortion of an electromagnetic (EM) signal using one or more non-linearity model parameters of a signal distortion model, calculating and transferring one or more coefficients of the one or more non-linearity model parameters to a signal transmit location, pre-distorting the signal using an inverse function based on the one or more non-linearity model parameters, and transmitting the pre-distorted signal over the telecommunications channel containing a non-linear amplifier to a remote receiving device.
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