| 摘要 |
PROBLEM TO BE SOLVED: To realize demodulation processing, even when an I channel signal and a Q channel signal are reversed when they are input, at speed comparable to the case in which no reversal has occurred.SOLUTION: A frequency correction unit 31 establishes synchronization of the frequency and the clock on the basis of a signal of a frequency synchronization unit 32. A channel reversal detection unit 35 of a frame synchronization unit 37 detects whether there has been a reversal of the I channel signal and the Q channel signal, and supplies, as the detection result, a channel reversal detection result to the channel reversal control unit 35. The channel reversal control unit 35 swaps the I channel signal and the Q channel signal if, on the basis of the channel reversal detection result, a reversal has occurred. This technique can be applied to demodulation devices. |
