| 摘要 |
PROBLEM TO BE SOLVED: To provide a MIMO-OFDM receiving device capable of surely achieving symbol synchronization even when there is a time lag in signal among a plurality of received signals.SOLUTION: When a temporal difference X at guard correlative peak positions in both polarized wave components is smaller than a prescribed threshold To/2, an OFDM symbol start position determination unit 22 of a valid symbol period extraction unit 2 determines guard correlative peak positions Th, Tv to be OFDM symbol start positions Th', Tv', respectively. Also, when the temporal difference X is equal to or greater than the prescribed threshold To/2, the OFDM symbol start position determination unit 22 determines polarized wave peak positions Th, Tv present near the tail of a 1-OFDM symbol period to be OFDM symbol start positions Th', Tv', respectively, and determines polarized wave peak positions Th, Tv present near the beginning of the 1-OFDM symbol period with a 1-OFDM symbol period To added thereto to be OFDM symbol start positions Th', Tv', respectively. |
