Radio apparatus and data reproducing method

A radio apparatus configured to receive a received signal having a frame structure in which a synchronization word field is interposed between anterior half part data and posterior half part data, the radio apparatus comprising:

• a receiving unit configured to detect the received signal and to output detected wave data;
• a storage unit configured to sequentially store a predetermined time length of the detected wave data;
• a synchronization detecting unit configured to detect a synchronization word from the detected wave data stored in the storage unit;
• a symbol timing detecting unit configured to determine a symbol timing of the detected wave data stored in the storage unit from the synchronization word;
• a DC offset detecting unit configured to detect a DC offset in the detected wave data stored in the storage unit from the synchronization word;
• and
• a data reproducing unit adapted
• to extract detected data for every symbol timing detected by the symbol timing detecting unit from detected wave data of the anterior half part data stored in the storage unit at a time when the synchronization word is detected by the synchronization detecting unit, and
• to cancel the DC offset detected by the DC offset detecting unit from the detected wave data for every symbol timing so as to extract a symbol value.