NDLI: New method for magnetometers based orientation estimation

Content Provider	IEEE Xplore Digital Library
Author	Renaudin, V. Afzal, M.H. Lachapelle, G.
Copyright Year	2010
Description	Author affiliation: Schulich School of Engineering, Position Location and Navigation (PLAN) Group, University of Calgary, 2500 University Drive N.W., Alberta, Canada, T2N 1N4 (Renaudin, V.; Afzal, M.H.; Lachapelle, G.)
Abstract	Low cost magnetometers can be used for estimating the orientation with respect to the magnetic North. Although magnetometers work very well in clean magnetic environments like in the outdoors, they are strongly influenced by magnetic perturbations produced by manmade infrastructure in the indoors. Calibration techniques exist that can be used to compensate for these perturbations only if they are constant and associated with the navigation platform itself. But in the indoors, these perturbations vary spatially and render the previously available calibration techniques useless. In this paper, we present a new calibration technique that can be used to compensate for the varying magnetic perturbations on the host platform with better accuracy. Based on this new calibration algorithm, magnetic heading is estimated using multiple magnetometers mounted in a special geometric arrangement. Results show that the new calibration technique and heading computation successfully estimate the cumulative effects of perturbations and gives a better orientation estimate as compared with previous work.
Starting Page	348
Ending Page	356
File Size	1473045
Page Count	9
File Format	PDF
ISBN	9781424450367
ISSN	21533598
DOI	10.1109/PLANS.2010.5507301
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-04
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetometers Calibration Magnetic sensors Magnetic field measurement Earth Mechanical sensors Satellite navigation systems Azimuth Fabrication Radio navigation pedestrian navigation Magnetometer calibration indoor magnetic field
Content Type	Text
Resource Type	Article

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