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.
Patent No.:
Date of Patent:
Feb. 14, 2023
Filed:
Aug. 14, 2020
Applicant:
Raytheon Company, Waltham, MA (US);
Inventors:
Shuwu Wu, Yorba Linda, CA (US);
Fang Sheng, Yorba Linda, CA (US);
Assignee:
Raytheon Company, Waltham, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 21/16 (2006.01); G01S 19/41 (2010.01); G01S 19/23 (2010.01);
U.S. Cl.
CPC ...
G01C 21/165 (2013.01); G01S 19/23 (2013.01); G01S 19/41 (2013.01);
Abstract
FAST provides a method of 'bootstrapping' a pseudo-range (PR) stage and one or more carrier-phase (CP) stages to quickly produce a highly accurate, high integrity receiver-to-receiver lever arm survey based on differential GNSS processing. The lever arm estimates of a previous stage are used to resolve the carrier phase ambiguities of the next stage. The method can be integrated with the warm-up of the integrity monitors to reduce the entire survey and warm-up startup time to 90 minutes or less, which is critical for mobile and make shift and precision approach and (automated) landing operations.