Patent ID: 9362869
Filing Date: 2016-06-07
CPC Classification: H03F,H04L

Claim Text:
1. A method, comprising: for each of a plurality of factors affecting signal distortion caused by a non-linear amplifier, creating a mathematical model for the effect of the factor, wherein the mathematical model includes a mathematical function representing an approximation of the effect of the factor; computing a global model based on a combination of the mathematical models for each effect of the plurality of factors, wherein the global model represents mathematically a combined effect of the plurality of factors on signal distortion caused by the non-linear amplifier, computing, during operation of the non-linear amplifier, one or more coefficients derived from the global model, wherein the coefficients are computed as a result of minimizing of a difference between an input signal representing an input of the non-linear amplifier and an output signal representing an output of the non-linear amplifier, wherein the one or more coefficients compensate for the combined effect of the plurality of factors on the signal distortion caused by the non-linear amplifier, and wherein the one or more coefficients are computed during operation of the non-linear amplifier using parameters developed during, and based on, data generated during functioning of the non-linear amplifier; and pre-distorting a signal with coefficients derived from the global model before applying the thus pre-distorted signal to the non-linear amplifier so as to compensate for the signal distortion caused by the non-linear amplifier.