Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite
Reexamination Certificate
2006-05-16
2010-06-01
Issing, Gregory C (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a satellite
Reexamination Certificate
active
07728767
ABSTRACT:
The invention relates to a satellite-based positioning system in which a transmitter (2) emits electromagnetic radiation at least at N≧3 carrier frequencies (3, 4, 5). In order to resolve the phase ambiguity for said satellite-based positioning system, the electromagnetic radiation is received by a receiver (1), and K pseudo paths (3a,4a,5a,6a) and L carrier phases (3b,4b,5b,6b), especially at least two pseudo paths (3a,5a) and at least two carrier phases (3b,4b), are derived from the received radiation as M pieces of distance data, wherein M=K+L. In order to determine the position, the integer phase ambiguity is derived from the linear combination of a maximum of M≦2N−1 pieces of distance data.
REFERENCES:
patent: 6934632 (2005-08-01), Hatch
patent: 7256730 (2007-08-01), Hernandez-Pajares et al.
patent: 7432853 (2008-10-01), Vollath
Teunissen, P.J.G., “On the GPS Widelane and Its Decorrelating Property,” Journal of Geodesy, (1997) 71:577-587.
Forssell, B. et al, “Carrier Phase Ambiguity Resolution in GNSS-2,” Proc. of the 10th Internatinal Tech. Meeting of the Sat. Division of ION, vol. 2, p. 1727-1736, Sep. 1997.
Hatch, Ron et al, “Civilian GPS: The Benefits of Three Frequencies,” GPS Solutions, vol. 3, #4, 2000, p. 1-9.
Han, S. et al, “The Impact of Two Additional Civilian GPS Frequencies on Ambiguity Resolution Strategies,” www.gmat.unsw.edu.au/snap/publications/han—etal1999a.pdf , 1999.
Euler et al: “On optimal filtering of GPS dual frequency observations without using orbit information,” Bulletin Géodésique (1991) 65: 130-143.
Vollath et al: “Analysis of Three-Carrier Ambiguity Resolution Technique for Precise Relative Positioning in GNSS-2,” Navigation, Inst. of Nav., vol. 46, No. 1, pp. 13-23.
Jung et al: “Optimization of Cascade Integer Resolution with Three Civil Frequencies,” Proceedings of the Inst. of Nav., Sep. 19, 2000.
Wuebbena: “GPS Carrier Phases and Clock Modeling,” in Groten, E. and Strauss, R., “GPS-Techniques Applied to Geodesy and Surveying,” Springer Verlag, Heidelberg, ISBN 354050267X, 1988, pp. 381-392.
Ulrich Vollath “The Factorized Multi-Carrier Ambiguity Resolution (FAMCAR) Approach for Efficient Carrier-Phase Ambiguity Estimation” 17th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2004, Sep. 21-24, pp. 2499-2508, XP009056324, Long Beach CA.
Shaowei Han, et al “The Impact of Two Additional Civilian GPS Frequencies on Ambiguity Resolution Strategies” Proceedings of the ION 55th Annual Meeting, Institute of Navigation, Jun. 28-30, 1999, pp. 315-321, XP002314346, Cambridge MA.
Patrick Y. Hwang, et al “Enhanced Differential GPS Carrier-Smoothed Code Processing Using Dual Frequency Measurements” Proceedings of the Institute of Navigation (ION) GPS, XX, XX, Sep. 18, 1998, pp. 461-470, XP002330223.
Dah-Jing Jwo “Improved Accuracy and Divergence Correction for the GPS Carrier-Smoothed-Code Processing” Journal of the Chinese Institute of Electrical Engineering, vol. 7, No. 4 (Nov. 2000), pp. 239-248, XP009055743.
Issing Gregory C
Leica Geosystems AG
Workman Nydegger
LandOfFree
Phase ambiguity resolution method for a satellite based... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Phase ambiguity resolution method for a satellite based..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase ambiguity resolution method for a satellite based... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4155537