Title:
GPS RECEPTION DEVICE AND GPS POSITIONING CORRECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2006/132003
Kind Code:
A1
Abstract:
There are provided a GPS reception device and a GPS positioning correction method capable of judging a satellite signal affected by a multi path by a simple and sure method and correcting a measured position of a mobile station. A reference station (2) includes position correction data calculation means (5) and reference station reception intensity measurement means (6). A mobile station (3) includes positioning means (9), mobile station reception intensity measurement means (11), and positioning correction means (12). The reference station (2) transmits the position correction data and the satellite signal reception intensity at the reference station to the mobile station (3). The mobile station (3) compares the reception intensity at the reference station to the reception intensity at the mobile station for each of the satellite signals of the satellites. When the difference is equal to or above a predetermined threshold value T1, the satellite signal of the satellite is excluded from the positioning satellite signal.
Inventors:
KUBO NOBUAKI (JP)
SUZUKI TAKASHI (JP)
YASUDA AKIO (JP)
SUZUKI TAKASHI (JP)
YASUDA AKIO (JP)
Application Number:
PCT/JP2005/022302
Publication Date:
December 14, 2006
Filing Date:
December 05, 2005
Export Citation:
Assignee:
UNIV TOKYO NAT UNIV CORP (JP)
KUBO NOBUAKI (JP)
SUZUKI TAKASHI (JP)
YASUDA AKIO (JP)
KUBO NOBUAKI (JP)
SUZUKI TAKASHI (JP)
YASUDA AKIO (JP)
International Classes:
G01S19/05; G01S19/07; G01S19/22; G01S19/28; G01S19/41
Foreign References:
| JPH10260242A | 1998-09-29 | |||
| JPH08240654A | 1996-09-17 | |||
| JP2001272451A | 2001-10-05 | |||
| JP2001264409A | 2001-09-26 | |||
| JPH0777570A | 1995-03-20 | |||
| JPH09274074A | 1997-10-21 | |||
| JPH10504899A | 1998-05-12 | |||
| JP2001311768A | 2001-11-09 |
Other References:
SUZUKI T.: "Shushi Gakui Ronbun GPS Sokui ni okeru Multipath-ha no Eikyo to sono Teigen ni Kansuru Kenkyu. (The Possibility of the Precise Positioning and Multipath Error Mitigation)", TOKYO UNIVERSITY OF MERCANTILE MARINE, 28 March 2005 (2005-03-28), XP003004619, Retrieved from the Internet [retrieved on 20060221]
Attorney, Agent or Firm:
Yoshitake, Kenji (Fuji Bldg. 2-3, Marunouchi 3-chom, Chiyoda-ku Tokyo 05, JP)
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