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Title:
3個のGPS周波数を用いて搬送波位相の整数値バイアスを解決する方法
Document Type and Number:
Japanese Patent JP4744445
Kind Code:
B2
Abstract:
A method for generating an ambiguity-resolved, refraction-corrected, and noise-minimized carrier-phase measurement. The method includes forming a first composite measurement using GPS carrier-phase measurements on the L1, L2 and L5 frequencies. To reduce the noise in the first composite measurement, the method further includes forming a second composite measurement using GPS carrier-phase measurements on at least two of the three GPS carrier frequencies. The second composite measurement is formed to have a small multi-path noise therein so that it can be used to smooth the first composite measurement so that the multipath noise is minimized.

Inventors:
Hatch, Ronald, Earl.
Application Number:
JP2006534451A
Publication Date:
August 10, 2011
Filing Date:
October 07, 2004
Export Citation:
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Assignee:
Navcom Technology, Inc.
International Classes:
G01S19/04; G01S19/44; G01S19/07; G01S19/22; G01S19/41; G01S19/48
Domestic Patent References:
JP2005069866A
JP2006510893A
Other References:
B. FORSSELL ET AL,Carrier Phase Ambiguity Resolution in GNSS-2 ,PROCEEDINGS OF THE INSTITUTE OF NAVIGATION,1997年,P1727-1736
YANMING FENG, SHNOWEI HAN,A Long-Range Dynamic GPS Positioning System and its Test Results,POSITION LOCATION AND NAVIGATION SYMPOSIUM, 1996,米国,IEEE,1996年 4月22日,P711-718
HERNANDEZ-PAJARES M ET AL,Impact of real-time ionospheric determination on improving precise navigation with GALILEO and next-generation GPS,PROCEEDINGS OF THE INSTITUTE OF NAVIGATION,2002年 9月,P1-4
SHAOWEI HAN, CHRIS RIZOS,The Impact of Two Additional Civilian GPS Frequencies on Ambiguity Resolution Strategies,PROCEEDINGS OF THE INSTITUTE OF NAVIGATION, ION 55TH ANNUAL MEETING,1999年 6月,P315-321
Attorney, Agent or Firm:
Yoshiyuki Inaba
Shinji Oga
Toshifumi Onuki