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Crosetto M.,Center Tecnologic Of Comunicaciones Of Catalonia | Monserrat O.,Center Tecnologic Of Comunicaciones Of Catalonia | Luzi G.,Center Tecnologic Of Comunicaciones Of Catalonia | Cuevas-Gonzalez M.,Center Tecnologic Of Comunicaciones Of Catalonia | Devanthery N.,Center Tecnologic Of Comunicaciones Of Catalonia
ISPRS Journal of Photogrammetry and Remote Sensing | Year: 2014

This paper is focused on deformation monitoring using the Ground-Based SAR (GBSAR) technique and a particular data acquisition configuration, which is called discontinuous GBSAR (D-GBSAR). In the most commonly used GBSAR configuration, the radar is left installed in situ, acquiring data periodically, e.g. every few minutes. Deformations are estimated by processing sets of GBSAR images acquired during several weeks or months, without moving the system. By contrast, in the D-GBSAR the radar is installed and dismounted at each measurement campaign, revisiting a given site periodically. This configuration is useful to monitor slow deformation phenomena. This paper outlines the D-GBSAR data analysis procedure implemented by the authors. This is followed by a discussion of some specific aspects of D-GBSAR monitoring. Two successful examples of D-GBSAR monitoring are discussed: one concerns an urban area, while the second one involves a rural area where the monitoring requires the use of artificial corner reflectors. © 2014 International Society for Photogrammetry and Remote Sensing, Inc. (ISPRS).

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