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Configurable basis-function generation for nonlinear modeling

  • US 8,576,941 B2
  • Filed: 11/16/2010
  • Issued: 11/05/2013
  • Est. Priority Date: 11/16/2010
  • Status: Active Grant
First Claim
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1. A method for compensating an input signal for distortion introduced by an electronic device operating on the input signal to produce an output signal, characterized in that the method comprises:

  • calculating a statistic characterizing the input signal over a selected time interval;

    selecting, based on the statistic, one of a predetermined plurality of basis function configurations for a non-linear model of pre-distortion for compensating the distortion introduced by the electronic device, wherein each basis function configuration corresponds to a different basis function set;

    determining a set of pre-distortion model weights corresponding to the selected basis function configuration;

    applying the selected basis function configuration and the set of pre-distortion model weights to the input signal, to produce a pre-distorted input signal for input to the electronic device.

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