Title:
RADIO WAVE STATUS OUTPUT DEVICE, RADIO WAVE STATUS OUTPUT METHOD, AND RADIO WAVE STATUS OUTPUT PROGRAM
Document Type and Number:
WIPO Patent Application WO/2023/162103
Kind Code:
A1
Abstract:
This radio wave status output device comprises: a measurement unit for measuring, when a directional antenna is directed to a plurality of different points on a plane intersecting a reference straight line extending along the horizontal direction, the reception power or the C/N value of radio waves received by the directional antenna; an angle measurement unit for measuring the azimuth angle and the elevation angle of the directional antenna when the directional antenna is directed to the plurality of different points; a calculation unit for calculating, for each of the plurality of different points, an approximation curved surface corresponding to the reception power or the C/N value at the position of said point on an XY-plane, in which the azimuth angle and the elevation angle measured by the angle measurement unit are respectively defined as an X-axis value and a Y-axis value, and the reception power or the C/N value measured by the measurement unit is defined as a Z-axis value; an extraction unit for extracting, from the approximation curved surface calculated by the calculation unit, a range on the XY-plane in which the value of the Z-axis is equal to or more than a prescribed threshold; and an output unit for outputting the range on the XY-plane extracted by the extraction unit.
Inventors:
YOSHIOKA MASAFUMI (JP)
NAGASE FUMIAKI (JP)
KURIYAMA KEITA (JP)
MIYAGI TOSHIFUMI (JP)
NAGASE FUMIAKI (JP)
KURIYAMA KEITA (JP)
MIYAGI TOSHIFUMI (JP)
Application Number:
PCT/JP2022/007702
Publication Date:
August 31, 2023
Filing Date:
February 24, 2022
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G01S3/04; H04B17/23
Foreign References:
| JPH05196716A | 1993-08-06 | |||
| US20190103665A1 | 2019-04-04 | |||
| JP2019132836A | 2019-08-08 | |||
| JP2021191998A | 2021-12-16 | |||
| JPH11163617A | 1999-06-18 |
Attorney, Agent or Firm:
TAKADA, TAKAHASHI & PARTNERS (JP)
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