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
Link To Document :
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