| 摘要 |
PROBLEM TO BE SOLVED: To rapidly and accurately identify a radio station that has transmitted radio signals, on the basis of the received signals. SOLUTION: A radio station identification device includes: a receiver 3 for receiving the radio signals from the radio station, an A/D converter 4 for detecting the receiving frequency of the radio signals received by a receiver 3, a feature vector waveform extraction unit 5 that analyses digital signals so as to extract the fluctuated waveform of the frequency generated at the rise of the digital signals as a feature vector waveform of the radio station, a feature data generating unit 6 for extracting as a candidate vector waveform a known feature vector waveform of the frequency which is approximate at a predetermined rate to the received frequency detected from a database unit 8 in which the known feature vector waveform of the known radio device is stored in advance as the known vector information, and a radio station identification processing unit 7 where the candidate vector waveform and feature vector waveform are compared for similarity calculation and radio station identification on the basis of the similarity. COPYRIGHT: (C)2011,JPO&INPIT
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