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:
Mar. 15, 2016
Filed:
Mar. 24, 2010
Sébastien Vourc'h, Paris, FR;
Victor Mauger, Paris, FR;
Sébastien Vourc'h, Paris, FR;
Victor Mauger, Paris, FR;
SAGEM DEFENSE SECURITE, Paris, FR;
Abstract
A method for monitoring the integrity of position information outputted by a hybridization device that includes a bank () of Kalman filters, each filter developing a hybrid navigation solution from inertial measurements calculated by a virtual platform () and from raw measurements of signals transmitted by a satellite constellation which are outputted by a global navigation satellite system (GNSS). The method includes, for each satellite of the constellation of calculating a cross-innovation of the satellite that reflects the deviation between an observation, corresponding to a raw measurement from the satellite, and an a posteriori estimation of said observation that is developed through a Kalman filter and does not use the raw measurement from the satellite; carrying out a statistical test of the cross-innovation to ascertain whether or not the satellite is malfunctioning.