Multicarrier signal transmission apparatus with peak power suppression and a method thereof

摘要

A multicarrier signal transmission apparatus provided with a hard clip suppression unit for hard clipping a peak part of a multicarrier signal, a low pass filter (6) for filtering the signal hard clipped by the hard clip suppression unit, and a peak suppression unit (7) for suppressing the peak part of the signal after filtering by the low pass filter, the peak suppression unit (7) provided with a peak detection unit (10) for detecting a peak part of the filtered signal, a window function generation unit (20) for generating a window function of an amplitude in accordance with a peak level of the peak part, and a peak suppressor (30) for attenuating the peak part in accordance with the value of the window function.