Using a ground-based radar system, Whiteford Geoservices can monitor multiple target points simultaneously over an extended period, capturing sub-millimetre displacements in real time under live loading conditions such as passing trains or traffic. The technique is particularly valuable for assessing settlement-affected infrastructure where traditional monitoring methods are impractical, costly or disruptive to operations.
The system works by emitting microwave signals towards a structure and analysing the phase difference in the returned signals to calculate movement with exceptional precision. Data is processed to generate displacement time histories, spectral analysis outputs and structural mode shapes — all without the need for access to the structure itself.
Key Applications
Key Benefits
How It Works
A ground-based radar unit is positioned with line-of-sight to the target structure. The system emits a continuous microwave signal and records the phase shift of the reflected signal over time. These phase shifts are processed to calculate displacement with sub-millimetre resolution. Post-processing generates time-history plots, frequency spectra and mode shape data for engineering interpretation.
Typical Deliverables
