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Proceedings Paper

Structural health monitoring of engineered structures using a space-borne synthetic aperture radar multi-temporal approach: from cultural heritage sites to war zones
Author(s): Pietro Milillo; Deodato Tapete; Francesca Cigna; Daniele Perissin; Jacqueline Salzer; Paul Lundgren; Eric Fielding; Roland Burgmann; Filippo Biondi; Giovanni Milillo; Carmine Serio
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Paper Abstract

Structural health monitoring (SHM) of engineered structures consists of an automated or semi-automated survey system that seeks to assess the structural condition of an anthropogenic structure. The aim of an SHM system is to provide insights into possible induced damage or any inherent signals of deformation affecting the structure in terms of detection, localization, assessment, and prediction. During the last decade there has been a growing interest in using several remote sensing techniques, such as synthetic aperture radar (SAR), for SHM. Constellations of SAR satellites with short repeat time acquisitions permit detailed surveys temporal resolution and millimetric sensitivity to deformation that are at the scales relevant to monitoring large structures. The all-weather multi-temporal characteristics of SAR make its products suitable for SHM systems, especially in areas where in situ measurements are not feasible or not cost effective. To illustrate this capability, we present results from COSMO-SkyMed (CSK) and TerraSAR-X SAR observations applied to the remote sensing of engineered structures. We show how by using multiple-geometry SAR-based products which exploit both phase and amplitude of the SAR signal we can address the main objectives of an SHM system including detection and localization. We highlight that, when external data such as rain or temperature records are available or simple elastic models can be assumed, the SAR-based SHM capability can also provide an interpretation in terms of assessment and prediction. We highlight examples of the potential for such imaging capabilities to enable advances in SHM from space, focusing on dams and cultural heritage areas.

Paper Details

Date Published: 18 October 2016
PDF: 12 pages
Proc. SPIE 10003, SAR Image Analysis, Modeling, and Techniques XVI, 100030N (18 October 2016); doi: 10.1117/12.2241620
Show Author Affiliations
Pietro Milillo, Jet Propulsion Lab. (United States)
Deodato Tapete, British Geological Survey (United Kingdom)
Francesca Cigna, British Geological Survey (United Kingdom)
Daniele Perissin, Purdue Univ. (United States)
Jacqueline Salzer, Helmholtz-Zentrum Potsdam Deutsches GeoForschungsZentrum GFZ (Germany)
Paul Lundgren, Jet Propulsion Lab. (United States)
Eric Fielding, Jet Propulsion Lab. (United States)
Roland Burgmann, Univ. of California, Berkeley (United States)
Filippo Biondi, Ministero Della Difesa (Italy)
Giovanni Milillo, Agenzia Spaziale Italiana (Italy)
Carmine Serio, Univ. degli Studi della Basilicata (Italy)

Published in SPIE Proceedings Vol. 10003:
SAR Image Analysis, Modeling, and Techniques XVI
Claudia Notarnicola; Simonetta Paloscia; Nazzareno Pierdicca; Edward Mitchard, Editor(s)

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