Vibration-based Structural Health Monitoring from single-pass SAR images

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Lotti, Alessandro and Vattulainen, Aleksanteri and Diaz Riofrio, Sebastian and Suppi, Chiara and Tonelli, Daniel and Rollo, Finlay and Ilioudis, Christos and Milillo, Pietro and Tubaldi, Enrico and Clemente, Carmine and Zonta, Daniele; (2025) Vibration-based Structural Health Monitoring from single-pass SAR images. In: Experimental Vibration Analysis for Civil Engineering Structures. Lecture Notes in Civil Engineering . Springer, PRT. (In Press)

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Abstract

This paper presents a micro-motion (m-m) technique for extracting the time histories of velocity from single pass Synthetic Aperture Radar (SAR) images, enabling remote vibration-based Structural Health Monitoring (SHM). The technique uses the m-m principle to capture the motion of vibrating reflective targets. The methodology is applied to SAR data of a suspension bridge, and the extracted velocities are compared to synchronous in-situ measurements from an installed monitoring system. Experimental validation demonstrates that single-pass SAR can measure vibration-related information of bridges down to velocities of 0.001 m/s.

ORCID iDs

Lotti, Alessandro, Vattulainen, Aleksanteri ORCID logoORCID: https://orcid.org/0000-0003-1898-600X, Diaz Riofrio, Sebastian ORCID logoORCID: https://orcid.org/0000-0002-0640-0385, Suppi, Chiara, Tonelli, Daniel, Rollo, Finlay, Ilioudis, Christos ORCID logoORCID: https://orcid.org/0000-0002-7164-6461, Milillo, Pietro, Tubaldi, Enrico ORCID logoORCID: https://orcid.org/0000-0001-8565-8917, Clemente, Carmine ORCID logoORCID: https://orcid.org/0000-0002-6665-693X and Zonta, Daniele ORCID logoORCID: https://orcid.org/0000-0002-7591-9519;
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