DIGITAL PRE-DISTORTION AND POST-DISTORTION BASED ON SEGMENTWISE PIECEWISE POLYNOMIAL APPROXIMATION

摘要

A nonlinear distorter is configured to mitigate nonlinearity from a nonlinear component of a nonlinear system. The nonlinear distorter operates to model the nonlinearity as a function of a piecewise polynomial approximation applied to segments of a nonlinear function of the nonlinearity. The nonlinear distorter generates a model output that decreases the nonlinearity of the nonlinear component.

主权项

1. A nonlinear system for mitigating nonlinearity from a nonlinear behavior having memory or exhibiting a memory effect comprising:
a memory storing executable components; and a processor, coupled to the memory, configured to execute or facilitate execution of the executable components, comprising:
a nonlinear component configured to process an input and provide an output that comprises a nonlinearity; anda distortion component configured to generate a model of the nonlinearity of the nonlinear component based on a segmentwise piecewise polynomial approximation and provide a model output that decreases the nonlinearity.