| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a demodulation device having both improved performance on frequency deviation correction using a guard interval and reduced calculation amount. <P>SOLUTION: In a communication device with applied block transmission, for exchanging signals having an added non-data series to a modulation symbol to convert into a frequency domain, a demodulation device for demodulating reception signals includes: an AFC unit 2 for compensating the frequency deviation of a reception signal on the basis of the non-data series; a subcarrier shift correction unit 21 for compensating frequency deviation that still remains in the reception signal after the frequency deviation is compensated in the AFC unit 2; and a detection unit 5 for demodulating the reception signal after the frequency deviation is compensated in the subcarrier shift correction unit 21. <P>COPYRIGHT: (C)2013,JPO&INPIT |
