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:
Jun. 26, 2012
Filed:
Dec. 03, 2009
Reed R. May, Seminole, FL (US);
Reed R. May, Seminole, FL (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
A method and system for navigation quality estimation is provided. The method comprises obtaining an alignment observation, comparing the alignment observation to a current heading estimate, and updating the current heading estimate based on the comparison. A heading error estimate is updated based on the updated current heading estimate, and an estimated drift rate is determined based on the heading error estimate and an operational latitude. A determination is then made whether a drift rate requirement is met by the estimated drift rate. If the drift rate requirement is not met, the method is repeated until the drift rate requirement is met.