Applications of New Technologies of Groundbased Interferometric Radar to the Study of Cultural Heritage Buildings

Differential Synthetic Aperture Radar Interferometry is a technique that, by making the phase difference of<br>SAR image pairs, allows to extract the information relevant to the earth surface displacements.<br>The result of the phase difference, referred to as Interferometric Phase or Interferogram, contains different<br>terms: the deformation phase term, a topographic phase contribution, an atmospheric phase term and the<br>noise contibution.