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Localization of Alternating Magnetic Dipole in the Near-Field Zone with Single-Component Magnetometers

Author

Listed:
  • Gao Xiang
  • Du Bo-cheng
  • Wang Qi-long

Abstract

Tri-axis magnetometers are widely used to measure magnetic field in engineering of the magnetic localization technology. However, the magnetic field measurement precision is influenced by the nonorthogonal error of tri-axis magnetometers. A locating model of the alternating magnetic dipole in the near-field zone with single-component magnetometers was proposed in this paper. Using the vertical component of the low-frequency magnetic field acquired by at least six single-component magnetometers, the localization of an alternating magnetic dipole could be attributed to the solution for a class of nonlinear unconstrained optimization problem. In order to calculate the locating information of alternating magnetic dipole, a hybrid algorithm combining the Gauss–Newton algorithm and genetic algorithm was applied. The theoretical simulation and field experiment for the localization of alternating magnetic dipole source were carried out, respectively. The positioning result is stable and reliable, indicating that the locating model has better performance and could meet the requirements of actual positioning.

Suggested Citation

  • Gao Xiang & Du Bo-cheng & Wang Qi-long, 2021. "Localization of Alternating Magnetic Dipole in the Near-Field Zone with Single-Component Magnetometers," Mathematical Problems in Engineering, Hindawi, vol. 2021, pages 1-11, July.
    • Handle: RePEc:hin:jnlmpe:8357981
    DOI: 10.1155/2021/8357981
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