NON-LINEAR DISTORTION COMPENSATOR

摘要

PROBLEM TO BE SOLVED: To provide satisfactory and stable distortion compensation characteristics even when a transmission power is changed by switching compensation coefficient ROM corresponding to the transmission power in the case of use for the transmission system of a radio communication system. SOLUTION: Plural compensation coefficient ROM 103 are prepared and the respective compensation coefficient ROM 103 store compensation coefficients calculated on the basis of transmission powers at plural levels within the range of transmission power control. When performing non-linear distortion compensation, the compensation coefficient ROM capable of obtaining the best distortion compensation characteristics corresponding to the transmission power at the point of time is selected in accordance with a control signal from a transmission power control part 110.