Title:
METHOD FOR USING THREE GPS FREQUENCIES TO RESOLVE CARRIER-PHASE INTEGER AMBIGUITIES
Document Type and Number:
WIPO Patent Application WO2005036202
Kind Code:
B1
Abstract:
The present invention includes 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 R (US)
Application Number:
PCT/US2004/033482
Publication Date:
May 12, 2005
Filing Date:
October 07, 2004
Export Citation:
Assignee:
NAVCOM TECH INC (US)
HATCH RONALD R (US)
HATCH RONALD R (US)
International Classes:
G01S19/04; G01S19/07; G01S19/22; G01S19/41; G01S19/44; G01S19/48; (IPC1-7): G01S5/14
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