Magnetic anomaly detection using a three-axis magnetometer

Arie Sheinker, Lev Frumkis, Boris Ginzburg, Nizan Salomonski, Ben Zion Kaplan

Research output: Contribution to journalArticlepeer-review

112 Scopus citations

Abstract

Magnetic anomaly detection is a good method for detecting ferromagnetic objects, particularly hidden targets. In this work, we address the detection of a moving ferromagnetic target using a static three-axis referenced magnetometer. The analysis and the results are also applicable to the converse case of a static ferromagnetic target and a moving three-axis referenced magnetometer. We use the three magnetometer outputs to build a total magnetic field of the target. This signal is decomposed into a set of orthonormal basis functions, out of which the dominant basis function is chosen as the detector. The detector provides output responses to any target magnetic moment orientation. We support the analysis by a computer simulation and real-world experimental results. The high detection probability and the simple implementation of the proposed method make it attractive for real-time applications.

Original languageEnglish
Article number4773521
Pages (from-to)160-167
Number of pages8
JournalIEEE Transactions on Magnetics
Volume45
Issue number1
DOIs
StatePublished - 1 Jan 2009

Keywords

  • Magnetic anomaly detection (MAD)
  • Orthonormal basis functions
  • Three-axis referenced magnetometer

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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