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:
Sep. 03, 2019
Filed:
Dec. 13, 2017
Commissariat a L'energie Atomique ET Aux Energies Alternatives, Paris, FR;
Safran, Paris, FR;
Sophie Morales, Varces, FR;
Augustin Palacios Laloy, Grenoble, FR;
Jean-Michel Leger, Villard Bonnot, FR;
Georges Remillieux, Boulogne-Billancourt, FR;
Marc Gramlich, Boulogne-Billancourt, FR;
Etienne Brunstein, Boulogne-Billancourt, FR;
COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, Paris, FR;
SAFRAN, Paris, FR;
Abstract
The invention relates to a navigational aid method for an inertial navigation system including at least one inertial sensor () having a sensitive axis (X-X), each inertial sensor () comprising an ASG gyroscope () able to deliver an ASG signal representative of a rotation about the corresponding sensitive axis (X-X), and a MEMS gyroscope () able to deliver a MEMS signal representative of a rotation about the corresponding sensitive axis (X-X), the method including the steps of: between a first date and a subsequent third date, calculating a path from the MEMS signals; from the third date, calculating the path from the ASG signals; estimating a bias vector introduced by the MEMS gyroscopes (), from the MEMS signals and ASG signals; at a fourth date subsequent to the third date, resetting the path.