GPR systems typically consist of three main parts:
control unit, antenna, and power supply. The heart of the GPR system, the control unit, produces and
regulates pulses of radar energy that the antenna sends into the
ground. The control unit then records the time it takes each pulse
to reflect back to the antenna and the signal strength of each
pulse. It then stores this information into its internal memory
where it can later be retrieved via computer and analyzed. The
reflections recorded by the control unit are caused by differences
in the electrical conduction properties between the material that
the pulses are traveling through and the material that they are
Proper antenna selection is the key to the success of any GPR
application. Antennas that emit lower frequencies are able to
penetrate deeper into the ground than those that emit higher
frequencies. This extra depth comes at the price of lower
resolution. Higher frequency antennas are able to detect much
smaller targets but can not penetrate as far into the ground.
Atlantic Subsurface Imaging has a broad range of antennas to handle
any GPR application.
All of this equipment would be useless without a reliable
source of power, so Atlantic Subsurface Imaging uses high-capacity
rechargeable batteries. Using battery-powered equipment allows us to
scan any area without being limited by proximity to electricity.
This is often vital, especially with new construction sites or large