Determination of Absolute Interferometric Phase in Circular InSAR Based on Demons Algorithm and Dual-angle Observation
The generation of high-precision ground digital elevation models (DEMs) based on synthetic aperture radar interferometry (InSAR) technology has attracted wide attention. One main problem is the phase ambiguity in the generated interferogram. Without external DEM, the 360° aperture gives circular InSAR (In-CSAR) the capability to estimate the phase ambiguity. We present, for the first time, the combination of Demons algorithm and dual-angle observation for absolute interferometric phase determination of In-CSAR system. The proposed strategy can estimate the phase ambiguity by dual-angle DEMs registration.
Authors
- Dong Feng (ORCID: https://orcid.org/0000-0002-7612-8823)
- Leping Chen (ORCID: https://orcid.org/0000-0002-2742-0326)
- Daoxiang An (ORCID: https://orcid.org/0000-0002-1363-9140)
- Yishi Li (ORCID: https://orcid.org/0000-0002-7284-5067)
- Jianpeng Li (ORCID: https://orcid.org/0000-0002-2685-9556)
- Yongping Song (ORCID: https://orcid.org/0000-0003-4191-0548)
Institutions
- National University of Defense Technology (CN)
Publication Details
- Published
- 2024-10-21
- DOI
- https://doi.org/10.1109/radar58436.2024.10993826
- Primary Topic
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Type
- article
- Field-Weighted Citation Impact
- 0.00