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A Null-Field Method for Estimating Underground Position

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4 Author(s)
Davis, C.P. ; Dept. of Electr. & Comput. Eng., Univ. of Illinois at Urbana-Champaign, Urbana, IL ; Weng Cho Chew ; Tucker, W.W. ; Atkins, P.R.

The geometric characteristics of low-frequency magnetic dipole fields and their relative insensitivity to the host media have made low-frequency coils useful for underground geolocation. A robust and succinct method is presented for converting dipole field measurements into estimates of receiver position. A noisy half-space model of the Earth is used to model the receiving environment. A perfectly conducting sphere immersed in a homogeneous conducting background is used to study the localized effects of buried metals.

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Geoscience and Remote Sensing, IEEE Transactions on  (Volume:46 ,  Issue: 11 )