- 专利标题: Electromagnetic wave identification method and identification device
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申请号: US14413529申请日: 2013-08-15
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公开(公告)号: US09841439B2公开(公告)日: 2017-12-12
- 发明人: Shinya Ohtsuka , Toshitake Umegane , Hiroki Shibata
- 申请人: KYUSHU INSTITUTE OF TECHNOLOGY
- 申请人地址: JP Fukuoka
- 专利权人: KYUSHU INSTITUTE OF TECHNOLOGY
- 当前专利权人: KYUSHU INSTITUTE OF TECHNOLOGY
- 当前专利权人地址: JP Fukuoka
- 代理机构: McGlew and Tuttle, P.C.
- 优先权: JP2012-194809 20120905
- 国际申请: PCT/JP2013/071952 WO 20130815
- 国际公布: WO2014/038364 WO 20140313
- 主分类号: G01R31/12
- IPC分类号: G01R31/12 ; G01R13/00 ; H01H33/26 ; H01H33/53
摘要:
An electromagnetic wave identification device includes a detection section for detecting an electromagnetic wave signal which is output from an antenna for detecting electromagnetic waves and whose level is equal to or greater than a predetermined level; a measurement and record section for recording and storing the detected electromagnetic wave waveform data; and an analysis and evaluation section for receiving the recorded and stored electromagnetic wave waveform data, normalizing the electromagnetic wave waveform data by an maximum amplitude value to obtain normalized data, and determining whether or not the received electromagnetic wave is a direct wave by reference to the normalized data. The analysis and evaluation section determines whether or not the received electromagnetic wave is a direct wave by obtaining a kurtosis from a histogram of amplitude values of the normalized data and determining whether or not the kurtosis is equal to or greater than a predetermined threshold, or by obtaining a normal probability plot from the normalized data and determining whether a value of the normalized data at a predetermined probability is equal to or greater than, or equal to or less than, a predetermined threshold.
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