| 摘要 |
PROBLEM TO BE SOLVED: To prevent deterioration in reception quality in an SFN environment even if a delayed wave is present that exceeds a guard interval. SOLUTION: An OFDM receiver 100 receives a wireless signal via a network that uses a single frequency. An antenna directivity control unit 122 forms directivity used when the signal is received. An OFDM receiver unit 120 measures a reception level and reception quality. A transmitter station information database 140 makes transmitter station location information associated with a transmitter station and stores it. On the basis of the reception level, the reception quality, the present location information of the OFDM receiver 100, and the transmitter station location information that is stored in the transmitter station information database 140, a determination unit 121 selects a transmitter station and changes directivity formed by the antenna directivity control unit 122 for each such selection. COPYRIGHT: (C)2011,JPO&INPIT |
