Hyperspectral 10–50GHz SAR imaging of building materials

Morrison, Keith; Andre, Daniel; Blacknell, David; Muff, Darren; Nottingham, Matt; Stevenson, Claire; Bennett, John

Hyperspectral 10–50GHz SAR imaging of building materials

2016

A laboratory-based study was carried out to assess the performance and unique intelligence capabilities of an extreme wideband 10-50GHz SAR. Very high resolution range-profile measurements were obtained of samples used in building construction. Periodic features in reflectivity with frequency were interpreted as a resonance between the front and back face reflections of a sample. The feature's characteristics were in good agreement with the idea of a sample as a resonant microwave cavity. The resonance behaviour was preserved in SAR imaging of the samples, examined by sub-band analysis. Selecting a composite Perspex-MDF target, there was good agreement between simulation and measurement.

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