User segment-based lever arm correction via prescribed...

Details User segment-based lever arm correction via prescribed... User segment-based lever arm correction via prescribed...

2006-10-31

2006-10-31

Tarcza, Thomas H. (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a satellite

C342S354000, C342S357490

Reexamination Certificate

active

07129889

ABSTRACT:
A method and apparatus for computing a lever arm correction between a wide beam coverage antenna and a steerable spot beam antenna of a navigational satellite is disclosed. A navigation receiver computes the lever arm correction using information from the navigational satellite that allows both the position of the navigational satellite and the navigational receiver to be determined using a known geometry of the steerable spot beam antenna and a prescribed satellite attitude maneuver profile.

REFERENCES:
patent: 5928309 (1999-07-01), Korver et al.
P.W. Ward et al., Satellite Signal Acquisition, Tracking, and Data Demodulation, Chapter 5 in Understanding GPS: Principles and Applications, Second Edition, ed E. Kaplan et al., Artech House, p. 153, 164, 2005.
B.C. Barker et al., Overview of the GPS M Code Signal, Proceedings of the Institute of Navigation, Jan. 2000.
Defense Science Board Task Force on The Future of the Global Positioning System, http://www.acq.osd.mil/dsb/reports/2005-10-GPS—Report—Final.pdf, Oct. 2005.
K. Kovach, New User Equivalent Range Error (UERE) Budget for the Modernized Navstar Global Positioning System (GPS), Proceedings of The Institute of Navigation National Technical Meeting, Jan. 2000.
Keith D. McDonald. The Modernization of GPS: Plans, New Capabilites and the Future Relationship to Galileo, Jul. 18, 2002, vol. 1, No. 1:1-17.

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