Phan Viet Hoa VU is defending her thesis on Thursday, December 14, 2023 at 9h00 at Cnam – 292 rue Saint Martin, 75003 Paris, in auditorium Jean Baptiste Say.
Title : Phase Linking algorithms for Multi-Temporal Radar Interferometry
Keywords: covariance matrix, robust estimation, Multi-temporal InSAR, Phase Linking, time series, displacement measurement
Abstract:
This thesis delves into the realm of Multi-Temporal Interferometric Synthetic Aperture Radar (MT-InSAR) techniques, particularly Phase Linking algorithm, for precise displacement measurements while mitigating signal decorrelation. Following the unprecedented volume of free-access SAR data, the demand for an algorithm with low computational load has raised, enabling the analysis of a longer time series over larger coverage. Moreover, recent missions offer high resolution data source and necessitate algorithms that can ensure the estimation accuracy while retaining the spatial resolution. Hence, in response to these challenges, our objectives are twofolds: i) to formulate and develop a mathematical framework where Phase Linking is reformulated into a covariance fitting optimization problem; ii) to introduce a robust estimation framework based on Phase Linking. The performances of the proposed algorithms are analysed through simulations and a real data case study encompassing the Mexico City.
Composition of the thesis jury :
| Jury member | Place of practice | Role in the jury |
| Antoine ROUEFF | Institut Matériaux Microélectronique Nanosciences de Provence/Université de Toulon | Reporter |
| Loïc DENIS | Laboratoire Hubert Curien/ Université de Saint-Etienne | Reporter |
| Arnaud BRELOY | Cnam | Examiner |
| Philippe FORSTER | LEME, Université Paris Nanterre | Examiner |
| Béatrice PINEL-PUYSSEGUR | CEA | Examiner |
| Guillaume GINOLHAC | Université Savoie Mont Blanc / LISTIC | Thesis supervisor |
| Yajing YAN | Université Savoie Mont Blanc / LISTIC | Thesis co-supervisor |
| Frédéric BRIGUI | ONERA-The French Aerospace Lab | Thesis co-supervisor |