Memoryless non-linear predistortion of digital amplitude modulation

摘要

A transmission system (10) which removes memoryless non-linear predistortion of a digital amplitude modulation signal introduced by an amplifier (26) in the transmission system (10). A portion of the output from the amplifier is passed through a predistorter update module (15). Predistorter update module (15) determines an error between an actual and an ideal signal. The error is input to a predistorter (20) in order to vary a modulation signal prior to input to the amplifier (26).