Evaluation of SAR tomographic processing algorithms on Sentinel-1 images dataset

Iulia-Ana Vasile; Cosmin Dănișor

doi:10.1117/12.2643178

2 March 2023 Evaluation of SAR tomographic processing algorithms on Sentinel-1 images dataset

Iulia-Ana Vasile, Cosmin Dănișor

Proceedings Volume 12493, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies XI; 124930T (2023) https://doi.org/10.1117/12.2643178
Event: Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies 2022, 2022, Constanta, Romania

Abstract

Synthetic aperture radar (SAR) represents one of the most popular and advanced remote sensing techniques for Earth monitoring, creating 2D images with a high spatial resolution. It is also notable that it is a system that does not depend on weather conditions or daylight to conduct the data acquisition. The main objective of the paper is to estimate the elevation profile of the scenes, using methods of tomographic processing of synthetic aperture radar images, on Sentinel-1 data. The city of Prague (Czech Republic), along with the surrounding areas was selected as the test region. The urban region will guarantee the high coherence of the acquisitions. To achieve the main objective, a multi-temporal data set will be built, consisting of 20 SAR acquisitions of the Sentinel-1 satellite, suitable for tomographic processing. Each of the 20 images has the same polarization and orbit orientation. For the image pre-processing stage, the SNAP interferometric processor was used. The preprocessing steps consist of: co-registration, generation of the flattened interferograms and their filtering. The final results of these steps were exported to Matlab for further processing. The reflectivity profile of each pixel will be estimated using two non-parametric filters: Beam-Forming and Capon, and the elevation maps of the area will be generated.

Citation Download Citation

Iulia-Ana Vasile and Cosmin Dănișor "Evaluation of SAR tomographic processing algorithms on Sentinel-1 images dataset", Proc. SPIE 12493, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies XI, 124930T (2 March 2023); https://doi.org/10.1117/12.2643178

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KEYWORDS

Synthetic aperture radar

Image processing

Interferometry

Radar

Tomography

Antennas

Reflectivity

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