ISSN: 1945-7545
CODEN: GTJODJ
Page Count: 5

Sensitivity Study of a Ground Probing Radar System

Bowders, JJ
Graduate research assistant and professor, Drexel University, Philadelphia, PA

Lord, AE
Professor of Physics, Physics Department, Drexel University, Philadelphia, PA

Koerner, RM
Graduate research assistant and professor, Drexel University, Philadelphia, PA

Abstract

A study was undertaken to determine the sensitivity of a ground probing radar (GPR) system. A review of the literature showed that an interface caused by a small contrast in densities resulted in a minimum amount of power from a transmitted signal being reflected. The following laboratory study revealed that the minimum amount of this power reflected is capable of causing a printable signal. It is these signals that cause difficulty in distinguishing the desired target in a GPR survey. Thus, the GPR system is often too sensitive for many applications, and it is suggested that some type of signal enhancement be considered for the system.

Keywords:
soils, soil tests, soil mechanics, geophysics, dielectrics, ground probing radar, anomalies, reflection, interpretation, signal enhancement, nondestructive testing

Paper ID: GTJ10810J
DOI: 10.1520/GTJ10810J
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