Ground Penetrating Radar - Time Domain Data
The following plots are the input signals for the GPR images on the other pages.
Each image is generated from a synthetic array of 30 receiver/transmitter pairs, so each of these graphics displays a collection of the data from these rx/tx pairs.
Due to the physical lay-out of the radar array there are two different geometries that the signals can be in:
- The "normal" geometry with the receiver and transmitter immediately next to each other.
- The "late" geometry with the receiver and transmitter separated by other, non-active, receivers and transmitters.
The larger separation between RX and TX causes the signals to appear "late."
Please forgive the disjoint manner of this page. It was mainly done to record and document the data. The plots will be made half size, axes labeled and all done to the same scale as time permits.
2 Inch Ball Bearing Data
| Input Data Selection |
Time/Distance (.71 Inch/count) vs Relative Amplitude |
| All data points |
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| "Normal" geometry |
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| "Late" geometry |
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2 inch Ball Bearing with Sand Background Subtracted Out
| Input Data Selection |
Time/Distance (.71 Inch/count) vs Relative Amplitude |
| All data points |
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| "Normal" geometry |
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| "Late" geometry |
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12 inch Pie Plate Data
| Input Data Selection |
Time/Distance (.71 Inch/count) vs Relative Amplitude |
| All data points |
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| "Normal" geometry |
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| "Late" geometry |
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12 inch Pie Plate with Sand Background Subtracted Out
| Input Data Selection |
Time/Distance (.71 Inch/count) vs Relative Amplitude |
| All data points |
|
| "Normal" geometry |
 |
| "Late" geometry |
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Click here to see our GPR detect sand (a non-metalic substance).
Click here to see our GPR modeling results.
Click here to see our GPR real world results.
Initial work by Bill Sunlin and Brian Hunt
Current model, implementation, exploitation and results by Donald Kerns
3D-Plots generated using Khoros by Khoral
dak 4/22/97