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:
May. 04, 2021

Filed:

Jun. 11, 2018
Applicant:

Honeywell International Inc., Morris Plains, NJ (US);

Inventor:

Mats Anders Brenner, Plymouth, MN (US);

Assignee:

Honeywell International Inc., Charlotte, NC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 19/55 (2010.01); G01S 19/44 (2010.01); G08G 5/00 (2006.01); G01S 19/43 (2010.01); G01S 19/07 (2010.01); G01S 19/41 (2010.01);
U.S. Cl.
CPC ...
G01S 19/55 (2013.01); G01S 19/44 (2013.01); G01S 19/071 (2019.08); G01S 19/41 (2013.01); G01S 19/43 (2013.01); G08G 5/0052 (2013.01);
Abstract

A Global Navigation Satellite System (GNSS) based navigation system with signal fault detection is provided. A least one controller is configured to; determine a true carrier phase measurement associated with each satellite signal received at each antenna of a plurality of spaced antennas; resolve integer ambiguities in true carrier phase measurement differences; and calculate at least one variable of a first navigation solution based on the obtained first set of resolved integer ambiguity measurements. The at least one controller is further configured to apply a solution separation process to repeatedly; calculate the at least one variable of a second navigation solution; determine a difference between the at least one variable of the second navigation solution and the first navigation solution; and detect a fault in satellite signals when the determined difference exceeds a defined threshold.


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