Communications: directive radio wave systems and devices (e.g. – Directive – Position indicating
Reexamination Certificate
2005-04-19
2005-04-19
Issing, Gregory C. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Position indicating
C342S386000
Reexamination Certificate
active
06882314
ABSTRACT:
Apparatus and methods for resolving integer ambiguities in position determination. An embodiment of the invention includes a reference system, augmented with multi-frequency pseudolites using a carrier phase differential GPS implementation, and a mobile system. In one embodiment, the components of the reference system includes one or more multi-frequency pseudolites, one or more multi-frequency reference receivers, a data link standing alone or built into the pseudolites, and the associated antennae for each of these elements. The components of the reference system may be stationary. The mobile system may include a multi-frequency receiver and its associated antennae. Because the mobile systems may passively receive information, an unlimited number of mobile systems may be included in any given embodiment of the invention. A multi-frequency pseudolite uses a single frequency source to synthesize all of the multiple carrier frequencies and all of the multiple base band signals modulated onto carrier frequencies for transmission.
REFERENCES:
patent: 6101178 (2000-08-01), Beal
patent: 6160837 (2000-12-01), Bruno et al.
patent: 6271788 (2001-08-01), Longaker et al.
patent: WO 9963358 (1999-12-01), None
Stone, Jonathan et al, “Carrier Phase Integer Ambiguity Resolution Using Dual Frequency Pseudolites,”, 11th International Tech. Meeting of the Satellite Division of the ION, Sep. 1998, pp 961-968.*
Forssen, B. “Comparison of wide-laning and tone-ranging,” Electronic Letters Aug. 28, 1997, vol. 33, No. 18, pp. 1525-1526.
“The Promise of a Third Frequency”, an article from “GPS World” Magazine dated May 1996 by author Hatch.
“The Impact of Two Additional Civilian GPS Frequencies on Ambiguity Resolution Strategies”, A conference paper presented to ION in Cambridge Massachusetts, Jun. 28-30, 1999 by Han and Rizos.
“Carrier Phase Integer Ambiguity Resolution Using Dual Frequency Pseudolites”, a conference paper presented at ION 1998 in Nashville, Sep. 17, 1998 by Stone and Powell.
“GPS Pseudolite Transceivers and their Applications”, a conference paper presented at ION '99 in San Diego, Jan. 25-27, 1999 by Stone, LeMaster, Powell, and Rock.
Cobb Henry Stewart
Cohen Clark E.
Lawrence David G.
Melton Walter C.
Montgomery Paul Yalden
Brinks Hofer Gilson & Lione
Issing Gregory C.
Novariant Inc.
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