Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite
Reexamination Certificate
2008-09-30
2010-06-29
Tarcza, Thomas H (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a satellite
Reexamination Certificate
active
07746272
ABSTRACT:
Methods and apparatus are provided for factorized processing of a set of GNSS signal data derived from signals having at least three carriers. A geometry filter is applied to the set of GNSS signal data using a geometry carrier-phase combination to obtain an array of ambiguity estimates for the geometry carrier-phase combination and associated statistical information. A bank of ionosphere filters is applied to the set of GNSS signal data using a geometry-free ionosphere carrier-phase combination to obtain an array of ambiguity estimates for the ionosphere carrier-phase combination and associated statistical information. At least one bank of Quintessence filters is applied to the set of GNSS signal data using a geometry-free and ionosphere-free carrier-phase combination to obtain an array of ambiguity estimates for the geometry-free and ionosphere-free carrier-phase combination and associated statistical information. At least one code filter is applied to the set of GNSS signal data using a plurality of geometry-free and ionosphere-free code-carrier combinations to obtain an array of ambiguity estimates for the code-carrier combinations and associated statistical information. The resulting arrays are combined to obtain a combined array of ambiguity estimates for all carrier phase observations and associated statistical information.
REFERENCES:
patent: 5519620 (1996-05-01), Talbot et al.
patent: 5602741 (1997-02-01), Talbot et al.
patent: 5757646 (1998-05-01), Talbot et al.
patent: 5805108 (1998-09-01), Lennen et al.
patent: 5828336 (1998-10-01), Yunck et al.
patent: 5890091 (1999-03-01), Talbot et al.
patent: 2 385 733 (2003-08-01), None
patent: 2 090 902 (1997-09-01), None
patent: 2 115 137 (1998-07-01), None
International Search Report and Written Opinion of the International Searching Authority in International Application No. PCT/US2004/035263 (ten pages).
M. Hernandez-Pajares et al., “Impact of Real-Time Ionospheric Determination on Improving Precise Navigation with Galileo and Next-Generation GPS,” Proceedings of the Institute of Navigation (ION) GOS, XX, XX, Sep. 2002, pp. 1-4.
J. Jung et al, “Optimization of Cascade Integer Resolution with Three Civil GPS Frequencies,” Proceedings of the Institute of Navigation (ION) GPS, XX, XX, Sep. 19, 2000 (ten pages).
U. Vollath et al., “Analysis of Three-Carrier Ambiguity Resolution Technique for Precise Relative Positioning in GNSS-2,” Navigation, Institute of Navigation, Washington, DC, vol. 46, No. 1, Mar. 21, 1999, pp. 13-23.
G. Bierman, Factorization Methods for Discrete Sequential Estimation, Academic Press, 1977 (pp. 1-241).
N. Carlson, Federated Square Root Filter for Decentralized Parallel Processing, IEEE Transactions on Aerospace and Electronic Systems, vol. AES-26, No. 3, May 1990, pp. 517-525.
S. Cliatt, GPS Modernization, Proceedings of the GNSS 2003, Apr. 22-25, 2003, Graz Austria (15 pages).
K. de Jong, Integrated GPS/Galileo ambiguity resolution, Proceedings of NaviTec 2001, 1st ESA workshop on satellite navigation user equipment technologies, Dec. 2001, pp. 318-325 (8 pages).
K. de Jong, Future GPS and Galileo signals, Geo-Informatics, Sep. 2002, 2 pp.
P. de Jonge, the LAMBDA method for integer ambiguity estimation: implementation aspects, LGR-Series No. 12, Delft Geodetic Computing Center. Delft University of Technology, The Netherlands, Aug. 1996, 49 pp.
P. de Jonge, Computational aspects of the LAMBDA method for GPS ambiguity resolution, Proceedings ION GPS-96, 9th International Technical Meeting of the Satellite Division of the Institute of Navigation, Kansas City, Missouri, Sep. 17-20, pp. 935-944.
H.-J. Euler et al., Fast GPS ambiguity resolution on-the-fly for real-time applications, Proceedings of Sixth International Geodetic Symposium on Satellite Positioning, Columbus, OH, Mar. 17-20, pp. 650-659.
A. Gelb (ed.), Applied Optimal Estimation, The M.I.T. Press, 1992. pp. 107-113 and pp. 133-136.
E. Grafarend et al., Generating Classes of Equivalent Linear Models by Nuisance Parameter Elimination—Applications to GPS Observations, Manuscripta Geodetica 11 (1986), pp. 262-271.
M. Grewal et al., Kalman filtering: theory and practice using MATLAB, second edition, 2001, John Wiley & Sons, New York (401 pages).
R. Hatch, The synergism of GPS code and carrier phase ambiguities, Proceedings of the 3rd International Geodetic Symposium on Satellite Doppler Positioning, Las Cruces, New Mexico, Feb. 1982, vol. 2, pp. 1213-1232.
R. Hatch, Ambiguity resolution in the fast lane. Proceedings of ION GPS-89, Colorado Springs, CO, Sep. 27-29, pp. 45-50.
R. Hatch, Instantaneous ambiguity resolution, IAG Symposium No. 107 ‘Kinematic Systems in Geodesy, Surveying, and Remote Sensing’, Banff, Canada, Sep. 10-13 (KIS'90), Springer Verlag, pp. 299-308.
R. Hatch, Comparison of several AROF kinematic techniques, Proceedings of ION GPS-94, Salt Lake City, UT, Sep. 20-23, pp. 363-370.
R. Hatch, The Promise of a Third Frequency, GPS World, May 1996, pp. 55-58.
R. Hatch, GPS Carrier-Phase Ambiguity Resolution, Institute for Mathematics and its Applications (IMA) “HOT TOPICS” Workshop: Mathematical Challenges in Global Positioning Systems (GPS), Aug. 16-18, 2000, 57 pp.
G. Hein et al., Galileo Frequency & Signal Design, GPS World, Jun. 2003, pp. 30-37.
B. Hofmann-Wellenhof et al., GPS Theory and Practice, Springer-Verlag, Fifth Edition, 2001, pp. 213-248.
P. Joosten et al., GNSS Three Carrier Phase Ambiguity Resolution using the LAMBDA-method, Proceedings of the GNSS 1999 (6 pages).
H. Landau et al., On-the-fly ambiguity resolution for precise differential positioning, Proceedings of ION GPS-92, Albuquerque, NM, Sep. 16-18, pp. 607-613.
A. Leick, GPS Satellite Surveying, Second Edition, John Wiley & Sons, Inc., 1995 (560 pages).
P. Misra et al., Global Positioning System: Signals, Measurements, and Performance, Ganja-Jamuna Press, 2001, Chapter 6, pp. 209-254.
D. Odijk, Triple-Frequency Ionosphere-Free Phase Combinations for Ambiguity Resolution, Proc. of the ENC-GNSS 2002 proceedings; The European Navigation Conference, Copenhagen, Denmark, May 27-30, 2002, 10 pp.
L. Sjöberg, The best linear combinations of L1 and L2 frequency observables in the application of Transit/Doppler and GPS, Manuscripta Geodetica 15, 1990, pp. 17-22.
P. Teunissen, The least-squares ambiguity decorrelation adjustment: a method for fast GPS integer ambiguity estimation, Journal of Geodesy, 1-2, 1995, pp. 65-82.
P. Teunissen et al., Integer least-squares estimation of the GPS phase ambiguities,. Proceedings of International Symposium on Kinematic Systems in Geodesy, Geomatics and Navigation KIS'94, Banff, Canada, Aug. 30-Sep. 2, Department of Geomatics Engineering, The University of Calgary, pp. 221-231.
P.G. Teunissen et al., Ambiguity dilution of precision: Definition, Properties and Application, Proceedings of the ION GPS-97, Sep. 16-19, 1997, Kansas City, USA, pp. 891-899.
P. Teunissen, The GPS integer least-squares statistics, Phys. Chem. Earth, 25(A9-A11), 673-677.
P. Teunissen, Statistical GNSS Carrier Phase Ambguity Resolution: A Review, IEEE Workshop on Statistical Signal Processing Proceedings 2001 (9 pages).
P. Teunissen, The success rate and precision of GPS ambiguities, J. Geod., 74(3/4), 2000, pp. 321-326.
U. Vollath et al., Analysis of Three-Carrier Ambiguity Resolution (TCAR) Technique for Precise Relative Positioning in GNSS-2, Proceedings of the ION-GPS 1998, Nashville, Sep. 15-18, The Institute of Navigation, Alexandria, VA, pp. 417-426.
U. Vollath et al., Ambiguity Resolution using Three Carriers, Performance Analysis using “Real” Data, Proceedings of the GNSS-2001 conference, Seville, May 2001,—pp.
U. Vollath et al., Network RTK Versus Single Base RTK—Understanding the Error Characteristics, Proceedings of the GNSS-2002 Conference, May 2002, pp. 2774-2780.
U. Vollath, Decentralized Floating Solution in Trimble Total Control 2.7, Trimble Terrasat GmbH Internal Report, Issue 1, Revision 1, unpublished (7 pages).
J. Wang et
Mull Fred H
Riter Bruce D
Tarcza Thomas H
Trimble Navigation Limited
LandOfFree
Ambiguity estimation of GNSS signals for three or more carriers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ambiguity estimation of GNSS signals for three or more carriers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ambiguity estimation of GNSS signals for three or more carriers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4250461