An Improved Two-Point Magnetic Target Localization Method
DOI:
https://doi.org/10.54097/yh77qd73Keywords:
LMS, Magnetic target localization method, Triaxial magnetic flux gate sensor.Abstract
This study addresses the existing limitations of methods for determining the location of magnetic targets. Traditional methods either require geomagnetic background field information or fail to obtain stable solutions in specific cases due to matrix inversion when geomagnetic background field is not required. In order to solve this problem, this paper first adopts a new sensor array, then rewrite the equation of its method, and then uses the least squares method (LMS) to solve the magnetic target position, solve the possible instability problem in the process of single point solution and finally achieve the magnetic target positioning. Simulation results show that the method can accurately and uniquely determine the position of a magnetic dipole in the presence of a geomagnetic field, while experimental results verify the superiority and practicality of the method.
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[1] Li, Y.; Devriese, S.G.; Krahenbuhl, R.A.; Davis, K. Enhancement of Magnetic Data by Stable Downward Continuation for UXO Application. IEEE Trans. Geosci. Remote Sens. 2013, 51, 3605–3614.
[2] Walter, C.; Braun, A.; Fotopoulos, G. High-resolution unmanned aerial vehicle aeromagnetic surveys for mineral exploration targets. Geophys. Prospect. 2020, 68, 334–349.
[3] Mehlem, K. Magnetostatic cleanliness analysis by the multiple dipole modelling method. In Proceedings of the Spacecraft Electromagnetic Compatibility, Noordwijk, The Netherlands, 24–26 May 1978; pp. 165–179.
[4] W Wynn, C Frahm, P Carroll.Advanced superconducting gradiometer Magnetometer arrays and a novel signal processing technique[J]. IEEE Transactions on Magnetics, 1975, 11(2):701-707.
[5] Schmidt, P.W. and D.A. Clark, The magnetic gradient tensor: Its properties and uses in source characterization. The Leading Edge, 2006. 25(1): p. 75-78.
[6] Heath, P., G. Heinson, and S. Greenhalgh, Some comments on potential field tensor data. Exploration Geophysics, 2003. 34(2): p. 57-62.]
[7] T. Nara, S. Suzuki, and S. Ando, “A closed-form formula for magnetic dipole localization by measurement of its magnetic field and spatial gradients,” IEEE Trans. Magn., vol. 42, no. 10, pp. 3291–3293,Oct. 2006.
[8] R. Wiegert, J. Oeschger, E. Tuovila, Demonstration of a novel man-portable magnetic STAR technology for real time localization of unexploded ordnance, Oceans. IEEE (2007) 1-7.
[9] R.F. Wiegert. Magnetic STAR technology for real-time localization and classification of unexploded ordnance and buried mines, Proceedings of SPIE - The International Society for Optical Engineering 73031U (2009) 1-9.
[10] Y.Y. Sui, G. Li, S.L. Wang, J. Lin, Asphericity Errors Correction of Magnetic Gradient Tensor Invariants Method for Magnetic Dipole Localization, IEEE T.Magn. 48(12) (2012) 4701-4706.
[11] C. Wang, X.J. Zhang, X.D. Qu, X. Pan, G.Y. Fang, L.Z. Chen, A Modified Magnetic Gradient Contraction Based Method for Ferromagnetic Target Localization, Sensors 16 (12) (2016) 2168-2181.
[12] Gang Yin, Yingtang Z, Hongbo F, et al. Magnetic dipole localization based on magnetic gradient tensor data at a single point[J]. Journal of Applied Remote Sensing, 2014, 8(1): 083596-083596.
[13] Beiki M, Clark D A, Austin J R, et al. Estimating source location using normalized magnetic source strength calculated from magnetic gradient tensor data[J]. Geophysics, 2012, 77(6):J23-J37.80
[14] Sui Y, Leslie K, Clark D. Multiple-order magnetic gradient tensors for localization of a magnetic dipole[J]. IEEE Magnetics Letters, 2017, 8: 1-5.
[15] Xu, L.; Gu, H.; Chang, M.; Fang, L.; Lin, P.; Lin, C. Magnetic Target Linear Localization Method Using Two-Point Gradient Full Tensor. IEEE Trans. Instrum. Meas. 2021, 70, 6007808.
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