| 摘要 |
PROBLEM TO BE SOLVED: To establish carrier reproduction with higher accuracy and to establish the receiving synchronization with higher assurance. SOLUTION: A carrier reproduction part 35 performs carrier reproduction by the use of the receiving signal corresponding to a unique word (w2), and the reproduced carrier is multiplied by the receiving signal corresponding to the word (w2) delayed by a delay part 31 and the receiving signal corresponding to a unique word (w1) delayed by a delay part 42 by the multiplication parts 36 and 43 respectively. In other words, the frequencies of both words (w1) and (w2) are corrected into their original frequencies. A carrier reproduction part 47 performs the carrier reproduction by the use of the receiving signal corresponding to the word (w1) having its corrected frequency. A multiplication part 49 multiplies the receiving signal of the word (w1) having its corrected frequency by the reproduced carrier to correct the phase of the word (w1). |
