Characterizing a GPR antenna system by near-field electric field measurements
Keyword(s):
A method to determine current distributions on resistively loaded Wu-King-type antennas from sparse near-field measurements of the electric field is introduced. We use a parametric formulation of current flow and invert the measured data to determine the characteristic antenna parameters and input voltage wavelets that best explain the measured electric-field data. We compare modeled and measured electric-field data to show that our inversion method yields reasonable results and that our antenna model provides a means to correct for the effects of an antenna’s finite length in migration/imaging algorithms. By modifying the description of the current distribution, our method may be adapted for various antenna types.
2011 ◽
Vol 5
(2)
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pp. 29-36
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Keyword(s):
2015 ◽
Vol 646
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pp. 012013
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1977 ◽
Vol 82
(16)
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pp. 2349-2360
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