Title:
POSITION MEASUREMENT METHOD, POSITION MEASUREMENT DEVICE, AND SATELLITE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/209149
Kind Code:
A1
Abstract:
One problem associated with conventional satellite systems is the difficulty in reducing size and weight of a satellite. A position measurement method according to the present invention includes: observing, in a first satellite (11), phases of a plurality of carrier waves transmitted from a plurality of transmission stations and generating first observation data (S1); observing, in a second satellite (12), phases of the plurality of carrier waves and generating second observation data (S2); performing phase difference calculation for calculating phase difference between the plurality of carrier waves observed in the first satellite (11) and the second satellite (12) by using the first observation data and the second observation data (S5); and performing base line vector calculation for calculating a base line vector that indicates a relative position between the first satellite and the second satellite, on the basis of the phase difference calculated in the phase difference calculation (S6). The phase difference calculation and the base line vector calculation are performed by either the second satellite or a position measurement device disposed on earth.
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Inventors:
TAKATA KOYA (JP)
WAKAFUJI KENJI (JP)
KAIDEN MASAHIRO (JP)
WAKAFUJI KENJI (JP)
KAIDEN MASAHIRO (JP)
Application Number:
PCT/JP2022/001200
Publication Date:
October 06, 2022
Filing Date:
January 14, 2022
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G01S5/10; B64G1/10
Foreign References:
| JP2005229448A | 2005-08-25 | |||
| US20210048542A1 | 2021-02-18 | |||
| US20030176972A1 | 2003-09-18 |
Other References:
KOYAMA, HIROSHI: "High Accuracy GPS Application for Future Spacecraft. ", JOURNAL OF THE SOCIETY OF INSTRUMENT AND CONTROL ENGINEERS, vol. 44, no. 4, 10 April 2005 (2005-04-10), pages 263 - 265, XP055975566, ISSN: 0453-4662
CHEUNG KAR-MING; LEE CHARLES: "A trilateration scheme for relative positioning", 2017 IEEE AEROSPACE CONFERENCE, IEEE, 4 March 2017 (2017-03-04), pages 1 - 10, XP033102862, DOI: 10.1109/AERO.2017.7943800
USUI, SUMIO: "Technology Trends and Applications of High Precision Satellite Positioning", JOURNAL OF THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, DENSHI JOHO TSUSHIN GAKKAI, TOKYO., JP, vol. 92, no. 9, 1 September 2009 (2009-09-01), JP , pages 768 - 774, XP009540326, ISSN: 0913-5693
MONTENBRUCK OLIVER, EBINUMA TAKUJI, GLENN LIGHTSEY E, LEUNG SUNNY: "A real-time kinematic GPS sensor for spacecraft relative navigation Ein GPS Sensor zur kinematischen Relativnavigation von Raumfahrzeugen in Echtzeit", AEROSPACE SCIENCE AND TECHNOLOGY, vol. 6, 1 January 2002 (2002-01-01), pages 435 - 449, XP055975563
CHEUNG KAR-MING; LEE CHARLES: "A trilateration scheme for relative positioning", 2017 IEEE AEROSPACE CONFERENCE, IEEE, 4 March 2017 (2017-03-04), pages 1 - 10, XP033102862, DOI: 10.1109/AERO.2017.7943800
USUI, SUMIO: "Technology Trends and Applications of High Precision Satellite Positioning", JOURNAL OF THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, DENSHI JOHO TSUSHIN GAKKAI, TOKYO., JP, vol. 92, no. 9, 1 September 2009 (2009-09-01), JP , pages 768 - 774, XP009540326, ISSN: 0913-5693
MONTENBRUCK OLIVER, EBINUMA TAKUJI, GLENN LIGHTSEY E, LEUNG SUNNY: "A real-time kinematic GPS sensor for spacecraft relative navigation Ein GPS Sensor zur kinematischen Relativnavigation von Raumfahrzeugen in Echtzeit", AEROSPACE SCIENCE AND TECHNOLOGY, vol. 6, 1 January 2002 (2002-01-01), pages 435 - 449, XP055975563
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
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