| 摘要 |
<P>PROBLEM TO BE SOLVED: To determine an offset level through reduced arithmetic processing, and correct it. <P>SOLUTION: A demodulation apparatus (100) includes: an analog/digital (A/D) converter (3) for converting an intermediate frequency (IF) signal into a digital signal through under-sampling; demodulators (4-24) each for demodulating an output signal of the A/D converter; and an offset adjusting section (2) for applying to the IF signal a correction signal for removing a signal level at a zero-cross point where codes are inverted between symbols determined by the demodulators. <P>COPYRIGHT: (C)2011,JPO&INPIT |
