DocumentCode
972106
Title
Application of weight functions to the magnetic localization of an object
Author
Mori, Keiichi
Author_Institution
Dept. of Appl. Phys., Nat. Defense Acad., Yokosuka, Japan
Volume
25
Issue
3
fYear
1989
fDate
5/1/1989 12:00:00 AM
Firstpage
2726
Lastpage
2731
Abstract
A method to localize a magnetized object from the readings of simple array of magnetometers that is selected to the advantage of magnetic field measurement is applied. In the method the dipole field curve is fit to the readings by weighted least squares, where the weight function that is proportional is applied to the sixth power of the distance between the assumed location of the object and the point for measurement to ensure convergence of the iteration. By an experiment using a ship´s magnetic model, it was ascertained that the convergence could be ensured if the initially approximated location is taken farther than the real one
Keywords
curve fitting; magnetic field measurement; magnetometers; position measurement; convergence assurance; curve fitting; dipole field curve; locating objects; magnetic field plotting; magnetic localization; magnetized object; magnetometer array readings; weight functions; weighted least squares; Convergence; Least squares approximation; Least squares methods; Magnetic field measurement; Magnetic moments; Magnetic noise; Magnetic sensors; Magnetometers; Magnetooptic recording; Power measurement;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.24515
Filename
24515
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