Method for characterising an inertial measurement unit

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11371848
APP PUB NO 20220042803A1
SERIAL NO

17416282

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Abstract

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A method of characterizing an inertial measurement unit includes a block carrying one accelerometer positioned on an axis of a measurement reference frame and having one gyro arranged to determine the orientation of the frame relative to an inertial reference frame. The method includes keeping the inertial measurement unit centered on a point that is stationary relative to the ground and that is in a predetermined environment, to obtain accelerometer signals that are images of at least one component of the specific force vector in the measurement reference frame and also gyro signals that are images of at least one component of the instantaneous rotation of the measurement reference frame; processing the signals to obtain data representative of projecting of the specific force vector into the inertial reference frame, after compensating for rotation of the Earth; and calculating Allan variance on the data and comparing it with reference data.

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Patent Owner(s)

  • SAFRAN ELECTRONICS & DEFENSE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Davi, Frédéric Paris, FR 1 0
Elie, Philippe Paris, FR 14 58
Lignon, Christian Paris, FR 11 24

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