Transmission Line Models of Wire Scattering

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Authors
  1. Tunaley, J.K.E.
Corporate Authors
Defence Research and Development Canada, Suffield Research Centre, Ralston AB (CAN);London Research and Development Corporation, London ONT (CAN)
Abstract
The report describes the estimation of the current induced in a horizontal wire lying on the ground due to a magnetic dipole located directly above it. A transmission line model is employed to provide insights into the physical mechanisms. A key and novel component of the theory is the estimation of the propagation constant and the characteristic impedance of the line in proximity to the ground. The results are compared with those from a commercial numerical simulation program called “FEKO”. It is found that the transmission line model provides results in satisfactory agreement with the simulation. Therefore the model is expected to be useful in optimizing equipment for the automatic detection of buried wires in general.
Keywords
wire scattering;electromagnetic scattering;induction
Report Number
DRDC-RDDC-2015-C119 — Contract Report
Date of publication
01 May 2015
Number of Pages
39
DSTKIM No
CA040715
CANDIS No
801717
Format(s):
Electronic Document(PDF)

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