| 摘要 |
A modulation scheme judging section (61) judges a modulation scheme for each burst based on a part of known sequence in a received signal, a soft decision section (62) gives a soft decision on the received signal, based on the judged modulation scheme, a soft decision value alteration controller (63) provides control, if there is a wrong judgement in the judgement of a past modulation scheme made during a period in which there has been no change in the modulation scheme, for correcting a corresponding soft decision value, a soft decision value storage (64) stores the soft decision value output by the soft decision section, and corrects the soft decision value under the control of the soft decision value alteration controller (63), a deinterleaver (16) performs a deinterleaving process to the stored soft decision value, and a decoder (17) decodes the soft decision value as after the deinterleaving process.
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