The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 03, 2010

Filed:

Jul. 23, 2007
Applicants:

Shuwu Wu, Foothill Ranch, CA (US);

Stephen R. Peck, West Hills, CA (US);

Robert M. Fries, Irvine, CA (US);

Peter D. Shloss, Los Alamitos, CA (US);

Inventors:

Shuwu Wu, Foothill Ranch, CA (US);

Stephen R. Peck, West Hills, CA (US);

Robert M. Fries, Irvine, CA (US);

Peter D. Shloss, Los Alamitos, CA (US);

Assignee:

Raytheon Company, Waltham, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 19/40 (2010.01); G01S 19/44 (2010.01);
U.S. Cl.
CPC ...
Abstract

Methods and apparatus for providing high integrity probability of connect fix (PCF) in GPS navigation applications, such as precision approach and landing and airborne refueling. In an exemplary embodiment, an enlarged pull in region is used to compute protection levels. In an exemplary embodiment, geometric extra-redundancy is used to enhance PCF and PAF (probability of almost fixed). In an exemplary embodiment, geometric extra-redundancy almost fixed solutions provide superior accuracy and integrity for GPS navigation applications.


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