Title:
RECEIVER TERMINAL, POSITIONING METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2020/255796
Kind Code:
A1
Abstract:
[Problem] To provide a receiver terminal capable of post-GNSS positioning correction considering multipath errors. [Solution] A receiver terminal comprises a positioning unit and a positioning result correction unit. The positioning unit performs positioning on the basis of radio waves transmitted from a plurality of satellites, and once the positioning starts, generates a positioning result vector including a plurality of positioning results by repeating positioning calculation. The positioning result correction unit corrects the positioning result at the start of the positioning using a first positioning result vector obtained during a normal mode. The positioning result correction unit generates correction information on the basis of the following obtained during a learning mode: satellite position information related to positions of the respective satellites, a second positioning result vector, and correct data related to a position of the receiver terminal obtained by a different method than the positioning using radio waves from the plurality of satellites. The positioning result correction unit corrects the positioning result from the normal mode using the generated correction information.
Inventors:
FUJINAMI MAKOTO (JP)
NOGAMI KOUSUKE (JP)
NOGAMI KOUSUKE (JP)
Application Number:
PCT/JP2020/022689
Publication Date:
December 24, 2020
Filing Date:
June 09, 2020
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G01S19/45; G01C21/28
Domestic Patent References:
| WO2008099474A1 | 2008-08-21 |
Foreign References:
| JP2005069873A | 2005-03-17 | |||
| JP2010197273A | 2010-09-09 | |||
| JP2008157705A | 2008-07-10 | |||
| US20120182179A1 | 2012-07-19 |
Attorney, Agent or Firm:
KAJITA, Kuniyuki (JP)
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