Patent ID: 8437425

Claim:
A distortion compensation device for receiving a transmission signal and subjecting the received transmission signal to a distortion compensation process for compensating for a nonlinear distortion caused by a transmission power amplifier, the distortion compensation device comprising: a distortion compensation coefficient storage unit configured to store a plurality of distortion compensation coefficients associated with power values of the transmission signals; a distortion compensation processing unit configured to acquire a distortion compensation coefficient corresponding to a power value of the received transmission signal from among the plurality of distortion compensation coefficients and to subject the received transmission signal to the distortion compensation process on the basis of the acquired distortion compensation coefficient; a phase calculating unit configured to calculate a phase correction value on the basis of the distortion compensation coefficients stored in the distortion compensation coefficient storage unit; a phase correcting unit configured to generate a reference signal by correcting a phase of the received transmission signal on the basis of the phase correction value; and a correction processing unit configured to perform a correction process for the transmission signal subjected to the distortion compensation process on the basis of the reference signal and a feedback signal, the feedback signal being fed back from the transmission power amplifier.