Summary of AFFORDABLE GROUND-PENETRATING RADAR
Summary: This article describes an affordable ground-penetrating radar (GPR) built by Mirel using an Arduino Mega 2560 and antipodal Vivaldi directional antennas mounted on a compact wheeled wagon. The system triggers scans as the wheels turn, operates from 323 MHz to 910 MHz, and displays basic visualizations on an LCD. It detects subsurface material density and depth, useful for excavations and locating utilities. All hardware and software are open-source with detailed technical discussion available.
Parts used in the Affordable Ground-Penetrating Radar:
- Arduino Mega 2560
- Antipodal Vivaldi antennas
- Compact wagon (mobile platform)
- Wheel-based switch/encoder for scan triggering
- LCD screen connected to the Arduino
- Radar transceiver components supporting 323 MHz to 910 MHz
- Power supply for electronics
- Assorted mounting hardware and cabling
Although radar is typically associated with scanning the sky, it is also used for underground purposes. Ground-penetrating radar (GPR) is utilized to send signals beneath the surface and analyze their return to determine the presence of buried objects, similar to locating or identifying distant aircraft by detecting radar echoes. This technology can be constructed using some readily available materials at a relatively low price.
This project was created by [Mirel] using an Arduino Mega 2560 and antipodal Vivaldi antennas, which are a specific type of directional antenna. All items are placed on a compact wagon that is easily movable on the ground. A radar is activated by a switch connected to the wheels at set intervals as the wheels turn, emitting a signal and detecting reflections at various points. A range of 323 MHz to 910 MHz is used by it, and it shows a small visualization on an LCD screen connected to the Arduino.
Using this instrument enables you to observe varying densities and depths of materials beneath the surface. This can prove to be extremely useful when commencing a substantial excavation project, identifying rock layers or underground utilities prior to digging. [Mirel] provided all the hardware and software as open-source for this project, so if you want to explore a different approach to GPR, check out this project which includes extensive technical discussions on its operation.
Source: AFFORDABLE GROUND-PENETRATING RADAR
- What microcontroller is used in the project?
The project uses an Arduino Mega 2560. - What type of antennas are used for the GPR?
Antipodal Vivaldi directional antennas are used. - How is the radar activated during movement?
A switch connected to the wheels triggers scans at set intervals as the wheels turn. - What frequency range does the radar use?
The radar operates from 323 MHz to 910 MHz. - Does the system provide any visual output?
Yes, it displays a small visualization on an LCD screen connected to the Arduino. - What platform is the hardware mounted on?
All items are placed on a compact wagon that is easily movable on the ground. - What can this GPR detect beneath the surface?
It can observe varying densities and depths of materials, useful for rock layers or underground utilities. - Is the project open-source?
Yes, Mirel provided all the hardware and software as open-source.
