| 摘要 |
PROBLEM TO BE SOLVED: To provide a pre-distorter that compensates for a distortion component generated in a power amplifier in the shortest possible time.SOLUTION: A controller of the pre-distorter selects a part of a plurality of vector adjusters by the use of measurement results of a power measurer, decides an amount of amplitude and/or phase adjustment to be fed to the selected vector adjuster on the basis of an observation result of a distortion observer, and sets the amount of adjustment decided or an amount of adjustment based on the amount of adjustment as an amount of amplitude and/or phase adjustment for the vector adjusters that have not been selected. |
