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Title:
GNSS RECEIVING DEVICE AND GNSS RECEIVING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/239764
Kind Code:
A1
Abstract:
[Problem] To provide a GNSS receiving device which is capable of simply determining whether a GNSS signal received by an antenna is based on a direct wave from a satellite. [Solution] This GNSS receiving device is provided with at least two antennas, a satellite direction acquisition unit, an estimation unit, and a determination unit. The satellite direction acquisition unit acquires, on the basis of satellite orbit information, a direction in which a satellite, which corresponds to a GNSS signal received by the antenna, is viewed from the antenna. The estimation unit estimates an incoming direction of the GNSS signal on the basis of the difference between timings at which the GNSS signal is received by the plurality of antennas. The determination unit determines whether the GNSS signal received by the antenna is a direct GNSS signal or an indirect GNSS signal on the basis of a direct wave from the satellite by comparing the direction in which the satellite is viewed from the antenna and the incoming direction estimated by the estimation unit.

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Inventors:
KOWADA SHINYA (JP)
HASHIMOTO KUNIHIKO (JP)
Application Number:
PCT/JP2019/019018
Publication Date:
December 19, 2019
Filing Date:
May 14, 2019
Export Citation:
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Assignee:
FURUNO ELECTRIC CO (JP)
International Classes:
G01S19/22; G01S3/46; G01S19/21
Foreign References:
JP2004279183A2004-10-07
JP2008139255A2008-06-19
JP2010256301A2010-11-11
JP2005077376A2005-03-24
JP2005195347A2005-07-21
JP2005214746A2005-08-11
JP2018031744A2018-03-01
JP2006337280A2006-12-14
JPH05196716A1993-08-06
US10024973B12018-07-17
US20130271316A12013-10-17
JPH0725609A1995-01-27
Other References:
See also references of EP 3809162A4
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