| 摘要 |
PROBLEM TO BE SOLVED: To make an output amplification part usable even in a nonlinear area. SOLUTION: A pilot symbol of a base-band signal before orthogonal modulation and a pilot symbol of a base-band signal obtained by orthogonally demodulating the signal outputted from the output amplification part 15 are inputted to an impulse response estimation part 21 in the same timing to perform estimation and reverse convolutional operation parts 8 and 9 add inverse distortion canceling distortion generated at the output amplification part 15 to the base-band signal before the orthogonal modulation according to the estimation result.
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