Title:
WIRELESS MACHINE IDENTIFICATION DEVICE AND WIRELESS MACHINE IDENTIFICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2019/016853
Kind Code:
A1
Abstract:
The present invention is provided with: a rise detection unit (3) which calculates an energy time waveform in a spectrogram of a Fourier transform signal output from a Fourier transform unit (2) and detects a rise time of a wireless signal from the energy time waveform; and a feature amount calculation unit (7) which extracts, from the Fourier transform signal output from the Fourier transform unit (2), a Fourier transform signal in a time period including the rise time detected by the rise detection unit (3) and calculates, from a complex time signal of a set frequency component included in the extracted Fourier transform signal, a variation of the extracted Fourier transform signal as the feature amount, wherein a wireless machine identification unit (11) identifies a wireless machine on the basis of the feature amount calculated by the feature amount calculation unit (7).
Inventors:
MATSUDA TAKAFUMI (JP)
OSHIMA TADASHI (JP)
AMISHIMA TAKESHI (JP)
SUZUKI NOBUHIRO (JP)
OSHIMA TADASHI (JP)
AMISHIMA TAKESHI (JP)
SUZUKI NOBUHIRO (JP)
Application Number:
PCT/JP2017/025914
Publication Date:
January 24, 2019
Filing Date:
July 18, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H04B17/20; G01R29/08
Foreign References:
| JP2016058841A | 2016-04-21 | |||
| JP2016040871A | 2016-03-24 | |||
| JP2014082610A | 2014-05-08 | |||
| JP2004214817A | 2004-07-29 | |||
| JP2002026826A | 2002-01-25 | |||
| JP2006211241A | 2006-08-10 |
Attorney, Agent or Firm:
TAZAWA, Hideaki et al. (JP)
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