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:
Dec. 11, 2018
Filed:
Mar. 06, 2015
Northrop Grumman Litef Gmbh, Freiburg, DE;
Manfred Huellenkremer, Freiburg, DE;
Manfred Krings, March, DE;
NORTHROP GRUMMAN LITEF GmbH, , DE;
Abstract
In a method for determining navigation data, positional angle measurement values are determined using a first navigation device (). A second navigation device () is then initialized using the positional angle measurement values determined by the first navigation device (). Both navigation devices are supplied with rotational rate and acceleration measurement values from a common sensor unit in order to determine the positional angle measurement values. In the process, the first navigation device () produces erroneous measurements of the positional angle measurement values with a probability which is lower than as specified positional angle error rate, and the second navigation device () produces erroneous measurements of the positional angle measurement values with a probability which is higher than the specified positional angle error rate. An erroneous measurement of the positional angle measurement values is present if one of the determined positional angle measurement values deviates from a corresponding positional angle reference value by more than a specified positional angle tolerance value.