A ground-based interferometer for the safety monitoring of landslides and structural deformations

摘要

This paper concerns the use of Ground-Based Synthetic Aperture Radar (GB-SAR) interferometer for the measurement of terrain movements and structural deformations in man-made structures. This instrument can measure displacements with a precision up to a fraction of millimetre. The spatial extension of the monitored area can be of a few squared kilometres. With respect to other traditional geotechnical instruments, the presented GB-SAR interferometer can remotely monitor the target scene, providing deformation maps and not only point-like measurements.