Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite
Patent
1997-01-09
1999-11-16
Blum, Theodore M.
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a satellite
701213, H04B 7185, G01S 502
Patent
active
059866039
ABSTRACT:
Method and apparatus for determining non-iterative exact solutions for two, three or four location fix coordinates x, y, z and/or time offset b from pseudorange measurements from a plurality of location determination (LD) signals received at a GPS or GLONASS station. If M location fix coordinates are to be determined from N pseudorange measurements, the solution is exact if N=M. If N=M-1, the solution for two of the location fix coordinates lies at a point, on an ellipse or on an hyperbola. If N.gtoreq.M+1, a solution lies at the center of a sphere in M-dimensional space or in the interior of the sphere, according as N=M+1 or N.gtoreq.M+2.
REFERENCES:
patent: 4463357 (1984-07-01), MacDoran
patent: 4894662 (1990-01-01), Counselman
patent: 4918609 (1990-04-01), Yamawaki
patent: 4972431 (1990-11-01), Keegan
patent: 5017926 (1991-05-01), Ames et al.
patent: 5111209 (1992-05-01), Toriyama
patent: 5146231 (1992-09-01), Ghaem et al.
patent: 5148179 (1992-09-01), Allison
patent: 5266958 (1993-11-01), Durboraw, III
patent: 5323163 (1994-06-01), Maki
patent: 5323322 (1994-06-01), Mueller et al.
patent: 5359521 (1994-10-01), Kyrtsos et al.
patent: 5390124 (1995-02-01), Kyrtsos
Tom Logsdon, "The Navstar Global Positioning System," pp. 1-91, Van Nostrand Reinhold, 1992.
"Navstar GPS Space Segment/Navigation User Interfaces," Interface Control Document GPS(200), No. ICD-GPS-200, Rockwell International, Satellite Systems Division, Rev. B-PR, IRN-200B-PR-001, Apr. 16, 1993.
Alfred Leick, "GPS Satellite Surveying," 2nd edition, pp. 247-285, John Wiley & Sons, Jan. 1995.
Blum Theodore M.
Schipper John F.
Trimble Navigation Limited
LandOfFree
Geometric utilization of exact solutions of the pseudorange equa does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Geometric utilization of exact solutions of the pseudorange equa, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Geometric utilization of exact solutions of the pseudorange equa will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1330089