| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an amplification device that keeps distortion compensation performance intact by suppressing the execution of wrong delay adjustments. <P>SOLUTION: The amplification device for amplifying an input signal in an amplifier 2 includes: a delay section 3 for delaying the input signal; a distortion compensation control section 4 for creating correction information for compensating for a distortion generated during the amplification in the amplifier 2 on the basis of the delayed input signal and a feedback signal that is an output of the amplifier 2 fed back; a distortion compensation section 1 for applying a distortion compensation process based on the correction information to the input signal; a delay adjustment section 5 for adjusting the delay of the delay section 3 so as to reduce a degree of shift in signal waveform between the delayed input signal and the feedback signal; and a burst signal detection section 6 for detecting that the input signal includes a waveform interval having a predetermined low frequency component, and excluding each signal in the interval from the adjustment in the delay adjustment section 5. <P>COPYRIGHT: (C)2013,JPO&INPIT |
