John P. Morrissey
John P. Morrissey
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Benchmarking large scale GPR experiments on railway ballast
The overall aim of this project was to relate ground penetrating radar (GPR) to a ballast fouling index (FI). Laboratory research aimed at characterising the electromagnetic properties has enabled researchers worldwide to determine ballast thickness using impulse ground penetrating radar (GPR) - based upon derived values of the relative electrical permittivity or dielectric constant.
R. De Bold
,
G. O' Connor
,
John P. Morrissey
,
M.C. Force
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