3. June 2024 © Copyright 2024, PROCEQ SA 11
3 Measurement Principle
GPR is the acronym for Ground Penetrating Radar, also known as Georadar, Ground
Penetration Radar, or Ground Probing Radar. Proceq GPR is a compact device that scans the
subsurface in a non-destructive way. It can penetrate the surface, based on concrete
conditions and antenna characteristics.
Figure 3: Measurement principle
Proceq GPR devices use stepped-frequency-continuous-wave (SFCW) technology. Unlike
pulsed-GPR broadcasting a signal centered around one frequency, resulting in a trade-off
between resolution and depth for inspecting, SFCW has the advantage to broadcast an ultra
wide-band range of modulated frequencies. The combination of all frequency response
enables detection of objects from shallow to deep in one scan.
Figure 4: Stepped-Frequency-Continuous-Wave principle
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