| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an interference wave detection apparatus which detects an interference wave mixed in a digital broadcasting wave in a real field and measures its frequency and D/U ratio even in the case that the interference wave is buried in an OFDM or even while digital broadcasting waves are being broadcasted and to provide an interference wave detection method. <P>SOLUTION: An interference wave detection part 20 detects the interference wave mixed in a band by temporally integrating the power of baseband signals corresponding to a plurality of carriers constituting the OFDM, and the frequency of the interference wave and a power ratio with a desired wave are acquired from the temporal power integrated value. <P>COPYRIGHT: (C)2004,JPO |
