Distortion compensation device and distortion compensation method

Abstract

A distortion compensation device includes an electric power amplifier that amplifies a transmission signal, and a processor that executes a process including: first identifying, by using a series that includes a plurality of coefficients or by using a look-up table that stores therein distortion compensation coefficients, an inverse characteristic of nonlinear distortion generated in the transmission signal in the electric power amplifier; second identifying, by using a plurality of coefficients, an inverse characteristic of linear distortion generated in the transmission signal in the electric power amplifier; and setting the coefficients for the first identifying and the second identifying such that a coefficient of a term with a degree of 1 in the series used in the first identifying or a sum of the plurality of coefficients used in the second identifying is a constant.

Dependencies are inferred from the claim text.