Micro-motion extraction from land and maritime targets with spaceborne SAR using sub-aperture phase analysis

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Clemente, C. and Vattulainen, A.B. and Rollo, F. and Lotti, A. and Zonta, D. and Milillo, P.; (2025) Micro-motion extraction from land and maritime targets with spaceborne SAR using sub-aperture phase analysis. In: 2025 22nd European Radar Conference (EuRAD). IEEE, NLD, pp. 254-257. ISBN 978-2-87487-083-5 (https://doi.org/10.23919/EuRAD65285.2025.11234218)

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Abstract

Micro-motion information from very high-resolution SAR imagery has the potential to provide additional insights in support of advanced target detection and recognition. Due to the implicit assumption in the imaging process that a scene is stationary, target motions and micro-motions result in residual phase shifts and modulations that can be retrieved to obtain kinematic characteristics. In this paper, an approach exploiting sub-aperture processing and phase analysis is introduced to analyse micro-motions of both land and maritime targets. The effectiveness of the proposed approach is demonstrated on real SAR data and validated using ground truth measurements.

ORCID iDs

Clemente, C. ORCID logoORCID: https://orcid.org/0000-0002-6665-693X, Vattulainen, A.B. ORCID logoORCID: https://orcid.org/0000-0003-1898-600X, Rollo, F., Lotti, A., Zonta, D. ORCID logoORCID: https://orcid.org/0000-0002-7591-9519 and Milillo, P.;
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