POSITIONING DEVICE, POSITIONING SYSTEM, AND POSITIONING METHOD

Title:

POSITIONING DEVICE, POSITIONING SYSTEM, AND POSITIONING METHOD

Document Type and Number:

WIPO Patent Application WO/2017/013874

Kind Code:

A1

Abstract:

[Problem] The purpose of the present invention is to provide a positioning device, positioning system, and positioning method, whereby positioning accuracy of a GPS can be improved. [Solution] This positioning device is characterized by being provided with: a first positioning means that outputs a first positioning result on the basis of a first positioning signal at a first frequency, and first correction information relating to the first positioning signal; a second positioning means that outputs a second positioning result on the basis of the first positioning signal, a second positioning signal at a second frequency, and second correction information relating to the second positioning signal; and a determining means, which selects and outputs, as positioning information, the first positioning result or the second positioning result on the basis of the result of a comparison between thus outputted first positioning result and thus outputted second positioning result.

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Inventors:

NAKANISHI TAKUMI (JP)

Application Number:

PCT/JP2016/003390

Publication Date:

January 26, 2017

Filing Date:

July 19, 2016

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Assignee:

NEC CORP (JP)

International Classes:

G01S19/32; G01S19/07; G01S19/40

Foreign References:

JP2007187592A	2007-07-26
JP2014206502A	2014-10-30
JP2011203100A	2011-10-13

Other References:

S. DATTA-BARUA: "Ionospheric Scintillation Effects on Single and Dual Frequency GPS Positioning", PROCEEDINGS OF THE 16TH INTERNATIONAL TECHNICAL MEETING OF THE SATELLITE DIVISION OF THE INSTITUTE OF NAVIGATION(ION GPS/GNSS 2003, pages 336 - 346, XP055348040
MASATO KAWAI ET AL.: "Dual Frequency SBAS Receiver", PROCEEDINGS OF THE 2009 IEICE GENERAL CONFERENCE TSUSHIN 1, 4 March 2009 (2009-03-04), pages S-32 - S-33
KAZUAKI HOSHINOO ET AL.: "Dual Frequency SBAS", PROCEEDINGS OF THE 2009 IEICE GENERAL CONFERENCE TSUSHIN 1, 4 March 2009 (2009-03-04), pages S-30 - S-31

Attorney, Agent or Firm:

SHIMOSAKA, Naoki (JP)

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