Similar Technologies
Ground penetrating radar uses a variety of technologies to generate the radar signal, these are impulse, stepped frequency, FMCW and noise. Systems on the market in 2009 also use Digital signal processing (DSP) to process the data, while survey work is being carried out rather than off line.
There is also a special kind of GPR that uses unmodulated continuous-wave signals. This is holographic subsurface radar that differs from other GPR types in that it records plan-view subsurface holograms. Depth penetration of this kind of radar is rather small (up to 20–30 cm), but lateral resolution is enough to discriminate different type of landmines in the soil or cavities, defects, bugging devices, or other hidden objects in walls, floors and structural elements.
GPR is used on vehicles for close-in high speed road survey and landmine detection as well as in stand-off mode.
Pipe Penetrating Radar (PPR) is an application of GPR technologies applied in-pipe where the signals are directed through pipe and conduit walls to detect pipe wall thickness and voids behind the pipe walls.
Wall-penetrating radar can read through walls and even act as a motion sensor for police.
The "Mineseeker Project" seeks to design a system to determine whether landmines are present in areas using ultra wideband synthetic aperture radar units mounted on blimps.
Read more about this topic: Ground-penetrating Radar
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