Ground Penetrating Radar (GPR) System
The EPIC has multiple Sensors & Software Noggin GPR Systems with SmartCart configuration (see image). The system has onboard GNSS/GPS*, data acquisition programming, and preliminary data interpretation capabilities. The system has both line-scan or grid-scan data collection modes. The onboard software allows for quick survey setup, on-the-go viewing of the waveforms collected, and initial waveform depth estimates. Processed onboard data can be visualized as depth versus position along a line, or as a slice view of grid data. For more in-depth post-acquisition processing and interpretation of the data, Sensors & Software EKKO Project GPR software access is also available from the EPIC.
The Noggin has 4 sets of transmitter/receiver antennae (1000, 500, 250, and 100 MHz) for near surface GPR investigations. Example uses include hydrology, engineering, archaeology, forensics, and educational projects. The four different antennae frequencies allow for a trade-off between depth of penetration and resolution. Depth of penetration is greatest using the 100 MHz antenna and least with the 1000 MHz antenna. The resolution is greatest using the 1000 MHz antenna and least with the 100 MHz antenna.
*Uncorrected GNSS/GPS locations have an accuracy of several meters, which is often sufficient for GPR surveying, depending on the use case. If you would like more accurate (cm-scale) GNSS/GPS locations, request an Emlid base station along with the receiver automatically included with the GPR. The base station will be able to send corrections to the GPR’s receiver. Or ask EPIC staff how to enable cellular corrections to the GPR’s receiver.
