Facts and Fictions about Standardized Testing
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Keywords: Ground Penetrating Radar, megahertz, Wavelength, TerraSIRch SIR-3000.


Ground Penetrating Radar (GPR) uses pulses of radar and reflected singles to collect images of the subsurfaces. These images return to the receiver and store data on digital media. The computer can measure the time it takes for the signal to reach object/target and return back again. These are reflected signals are interpreted by the system and then displayed on the GPRs LCD screen.

The purpose of this research was to gain a better understanding of the uses and methods involving ground penetrating radar, and to experience the situations in which GPR can be a useful and effective tool.

For the data analysis part of the GPR it is important to know that the waves travel through various materials including soil, concrete, and debris, etc. All of these things have different dielectric and conductive properties that affect the GPR waves and the way that the data is interpreted. For the data that is shown on the GPR LCD screen, it takes someone with good field experience to interpret them and determine what was found.

One most important question ask about the GPR is how deep do the signals go? When it comes to GPR the depth range can be determined depending on the subsurface material and the frequency of the GPR antenna.