ESTIMATION AND DETERMINATION OF CARRIER WAVE AMBIGUITY IN POSITION NAVIGATION SYSTEM

Japanese Patent JP2005283576

A

To provide a method and a device for determining ambiguity of the decimal and integer of a floating point in a satellite position navigation system.

A Rover station has a satellite receiving device positioned periodically on an unknown place, capable of receiving a navigation signal. A relative position coordinate between a base station existing on a known place and the Rover station is calculated, and other position parameters relative to the satellite position are calculated. Therefore, geometric constraint based on a measured elevation angle between the Rover and the base station is incorporated into data calculation and processing, to thereby enable to support determination of carrier wave phase ambiguity. The elevation angle is measured by transmitting a plurality of laser beams to an optical sensor of the Rover station. Higher accuracy can be acquired in the specification of the place of the Rover by this technique.

BRABEC VERNON JOSEPH
GOAD CLYDE C
KHVALKOV ALEXANDER A
RAPOPORT LEV BORISOVICH

JP2005070471A

October 13, 2005

March 14, 2005

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TOPCON GPS LLC

G01C15/00; G01S19/44; G01C25/00; G01S3/782; G01S5/00; G01S5/14; (IPC1-7): G01S5/14

JP2003214850A	2003-07-30
JPH09509489A	1997-09-22
JPH08240428A	1996-09-17
JP2003232845A	2003-08-22
JP2000144812A	2000-05-26
JP2003214852A	2003-07-30

US20030085839A1

2003-05-08

Masao Okabe
Nobuaki Kato
Kazuo
Okabe
Shinichi Usui
Takao Ochi
Teruhisa Motomiya
Asahi Shinmitsu
Katsumi Miyama

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