Method for estimating movement of a solid

US7711516B2 · kind B2 · utility

Assignees

• COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR
• UNIVERSITÉ JOSEPH FOURIER · FR
• Institut National Polytechnique de Grenoble · FR

Inventors

• Yanis Caritu · Petite-Île, FR
• Christelle Godin · Grenoble, FR
• Alain Barraud · Meylan, FR
• Suzanne Lesecq · Meylan, FR

Key dates

• Filing date: Dec 21, 2006
• Grant date: May 4, 2010
• Expiry date: Jan 13, 2027

Classification

• Technology area (CPC G): Physics
• CPC primary: G01C21/16
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The method estimates movement of a solid mobile in a medium capable of generating disturbances defined by a three-variable vector, wherein the movement is defined by a six-variable vector and the solid is equipped with at least one sensor sensitive to acceleration having at least three sensitive axes and at least one sensor sensitive to the magnetic field having at least three sensitive axes. The method for estimating the movement of a solid includes a step of calculating a nine-variable vector consisting of the six-variable movement vector and of the three-variable disturbance vector and a step of weighting the nine-variable vector capable of transforming the nine-variable vector into a vector with not more than five variables to be estimated.