吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (2): 655-660.doi: 10.13229/j.cnki.jdxbgxb201702042

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Magnetic object localization with eigenvalue and eigenvector of tensor

WAN Cheng-biao1, PAN Meng-chun1, ZHANG Qi1, PANG Hong-feng1, ZHU Xue-jun2   

  1. 1.College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha 410073,China;
    2.Unit 95835 PLA, Urumqi 841700,China
  • Received:2015-12-26 Online:2017-03-20 Published:2017-03-20

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Abstract: A method of object orientation and localization with the eigenvalue and eigenvector of magnetic gradient tensor matrix was proposed for a magnetic dipole. Using the magnetic gradient tensor as a main information and the sensor's coordinates in the reference frame as an ancillary information, first, this approach can calculate two directions from the sensor toward the object, including false and true, and then make sure the real position. In the case of high Signal to Noise Ratio (SNR), the results of simulation and experiment show that the proposed method has the similar localization performance to the direct inversion, which indicates that this method can work in practice.

Key words: communication technology, magnetic object, orientation, localization, gradient tensor, eigenvalue, eigenvector

CLC Number: 

  • TN911.23
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