| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an interference determination circuit capable of determining whether radio signals are confused or not easily, a demodulation device, an interference determination method, and a demodulation method. <P>SOLUTION: This interference determination circuit 21 includes an APD (Amplitude Probability Distribution) measurement part 31 for measuring an amplitude probability distribution I<SB>M</SB>of input signals, a database 32 for storing amplitude probability distribution information I<SB>R</SB>corresponding to a modulation method, a comparison part 33 for comparing measurement information obtained from the amplitude probability distribution I<SB>M</SB>measured by the APD measurement part 31 with the amplitude probability distribution information I<SB>R</SB>stored in the database 32, and a determination part 34 for obtaining a comparison result I<SB>A</SB>from the comparison part 33 and determining whether the measurement information coincides with the amplitude probability distribution information I<SB>R</SB>or not by using the obtained comparison result I<SB>A</SB>. <P>COPYRIGHT: (C)2011,JPO&INPIT |
