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:
Apr. 10, 2018
Filed:
Jan. 09, 2015
Honeywell International Inc., Morristown, NJ (US);
Honeywell International Inc., Morris Plains, NJ (US);
Abstract
One embodiment is directed towards a method for determining a heading for a hybrid navigation system with magnetometer aiding. The method includes receiving signals from a plurality of GNSS satellites, obtaining three-dimensional inertial measurements from one or more inertial sensors, and obtaining three-dimensional magnetic measurements from one or more magnetometers. Magnetic bias states are estimated for the three-dimensional magnetic measurements with a magnetic calibration filter using the three-dimensional inertial measurements, data from the signals from the plurality of GNSS satellites, and the three-dimensional magnetic measurements. An artificial heading is calculated based on the magnetic bias states. A main navigation solution can be estimated with a main navigation filter using the three-dimensional inertial measurements, data from the signals from a plurality of GNSS satellites, and the artificial heading.