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.
| Original language | English |
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| Title of host publication | 2025 22nd European Radar Conference (EuRAD) |
| Place of Publication | Piscataway, NJ |
| Publisher | IEEE |
| Publication status | Accepted/In press - 25 Apr 2025 |
| Event | 22nd European Radar Conference - Utrecht, Netherlands Duration: 24 Sept 2025 → 26 Sept 2025 https://www.eumw.eu/conference/the-european-radar-conference-eurad/ |
Conference
| Conference | 22nd European Radar Conference |
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| Abbreviated title | EuRAD 2025 |
| Country/Territory | Netherlands |
| City | Utrecht |
| Period | 24/09/25 → 26/09/25 |
| Internet address |
Funding
This research was funded by: the European Space Agency under the project “EO4Security - Innovative SAR Processing Methodologies For Security Applications - Topic B2: Micro-Doppler Processing”, Fondazione CARITRO (grant number 2021.0224) and the Agreement DPC/ReLUIS 2024-2026 (WP6), and; the Defence Science and Technology Laboratory, UK DSTL0000037889. The authors also thank Umbra Labs for data collection and access, and the crew of the Galway Girl for their cooperation and assistance during field trials.
Keywords
- very high-resolution SAR
- synthetic aperture radar
- micro-Doppler
- micro-motion
- phase retrieval
- target characterization