DISTORTION COMPENSATION DEVICE, DISTORTION COMPENSATION METHOD, AND TRANSMISSION DEVICE

Abstract: a distortion compensation device includes: an amplification target signal acquiring unit that acquires an amplification target signal to which power amplification by a power amplifier is performed; and an operation status signal acquiring unit that acquires an operation status signal indicating an operation status of the power amplifier. in addition, the distortion compensation device includes a distortion compensation unit that estimates a signal in which distortion is added to the amplification target signal acquired by the amplification target signal acquiring unit as a predistortion signal for compensating distortion generated in the amplification target signal after power amplification by the power amplifier on the basis of the amplification target signal acquired by the amplification target signal acquiring unit and the operation status signal acquired by the operation status signal acquiring unit, and outputs the predistortion signal to the power amplifier.

Inventor(s): Ao YAMASHITA, Hiroto SAKAKI, Hideyuki NAKAMIZO

CPC Classification: H03F1/32 (Modifications of amplifiers to reduce non-linear distortion (by negative feedback ))

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