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:
Aug. 23, 2016
Filed:
Sep. 16, 2011
Per-olof Persson, Karlskoga, SE;
Rolf Michel, Karlskoga, SE;
Per-Olof Persson, Karlskoga, SE;
Rolf Michel, Karlskoga, SE;
SAAB AB, Linköping, SE;
Abstract
A method for improving an accuracy of a radio based navigation system by correcting the position given by the radio based navigation system with a correction vector derived from localization data stored in a map database. Position coordinates of the radio based navigation system are measured. A set of 3D map data is selected based upon the measured position coordinates of the radio based navigation system position coordinates. The actual position is determined from the selected 3D map data. The actual position data coordinates are retrieved from the 3D map data based upon the determined actual position. The correction vector is calculated from position difference between measured radio based navigation system position coordinates and retrieved actual position coordinates. The position given by the radio based navigation system is corrected with the correction vector.