Bridge vibration measurements from very high-resolution spaceborne SAR

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Vattulainen, Aleksanteri and Rollo, Finlay and Lotti, Alessandro and Tonelli, Daniel and Diaz Riofrio, Sebastian and Tubaldi, Enrico and Zonta, Daniele and Ilioudis, Christos and Milillo, Pietro and Clemente, Carmine (2024) Bridge vibration measurements from very high-resolution spaceborne SAR. In: IEEE Sensors 2024, 2024-10-20 - 2024-10-23. (In Press)

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Abstract

Structural health monitoring (SHM) using vibrometry is a key technique for the maintenance of bridges and other infrastructure. Conventional methods require in-situ placement of sensors which can be costly and inconvenient. This paper presents a remote monitoring method for extracting vibrational information from very high-resolution SAR data. This was achieved using a combination of a modified back-projection algorithm, spectrogram, and cadence-frequency analysis, which was applied to SAR data of a bridge. The extracted vibrations were validated against synchronous in-situ ground truth measurements.

ORCID iDs

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