Title:
POSITION ESTIMATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/012575
Kind Code:
A1
Abstract:
A position estimation device to which the present invention has been applied comprises an input unit for inputting measurement results obtained through the reception by an antenna of elliptically polarized waves from a wireless device, an axis ratio calculation unit for using the measurement results input by the input unit to calculate an axis ratio that is the ratio of the minor axis and major axis of the elliptically polarized waves, and an estimation unit for using the axis ratio calculated by the axis ratio calculation unit to estimate the positional relationship between the wireless device and antenna.
Inventors:
NAGATA YUKI (JP)
Application Number:
PCT/JP2018/026171
Publication Date:
January 16, 2020
Filing Date:
July 11, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G01S3/14; G01S5/04; H04B1/59
Domestic Patent References:
| WO2010022785A1 | 2010-03-04 |
Foreign References:
| JPS564072A | 1981-01-16 | |||
| JP2018025556A | 2018-02-15 | |||
| US20110291892A1 | 2011-12-01 | |||
| US6107962A | 2000-08-22 |
Attorney, Agent or Firm:
SOGA, Michiharu et al. (JP)
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