| 摘要 |
PROBLEM TO BE SOLVED: To obtain a distortion compensating apparatus enabling power adjustment processing without losing effects of distortion compensation. SOLUTION: A DPD processing section 2 includes an inverse model estimation section 21 for estimating an inverse model to I/O characteristics of an HPA 6, based on an input signal to the HPA 6 and an output signal from the HPA 6, a distortion compensation section 23 for correcting the input signal based on the inverse model to compensate for distortion in the I/O characteristics, and a power adjustment section 20 for adjusting the input signal to adjust the power of the output signal before processing of distortion compensation by a distortion compensation section 23. COPYRIGHT: (C)2010,JPO&INPIT
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