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:
Apr. 16, 2024

Filed:

Feb. 03, 2021
Applicant:

Trx Systems, Inc., Greenbelt, MD (US);

Inventors:

John George Karvounis, College Park, MD (US);

Benjamin Edward Funk, Hanover, MD (US);

Jonathan Morton Fetter-Degges, Washington, DC (US);

Carole Ann Teolis, Glenn Dale, MD (US);

Assignee:

TRX SYSTEMS, INC., Greenbelt, MD (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 19/00 (2010.01); G01S 19/11 (2010.01); G01S 19/24 (2010.01); G01S 19/39 (2010.01); G01S 19/40 (2010.01); G06F 18/25 (2023.01);
U.S. Cl.
CPC ...
G01S 19/396 (2019.08); G01S 19/11 (2013.01); G01S 19/243 (2013.01); G01S 19/40 (2013.01); G06F 18/25 (2023.01);
Abstract

A computer implemented method of validating an output from a GNSS at a receiver including a fusion system comprising location sensors. A location estimate and a location error estimate are computed. A navigation update including a sensor location estimate and sensor location error estimate is also computed with the fusion system based on sensor measurements from the location sensors. A determination is made as to whether or not GNSS filters should be applied based at least on the location estimate, the sensor location estimate, and the sensor location error estimate. When GNSS filters should be applied, the location estimate and/or the location error estimate may be adjusted or rejected and a new navigation update may be computed with the fusion system based on the adjustment or rejection. When the GNSS filters should not be applied, the new navigation update is computed with the location estimate and the location error estimate.


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