A TOPSAR Processor based on the Ω-K Algorithm: Evaluation with Sentinel-1 Data
Conference: EUSAR 2016 - 11th European Conference on Synthetic Aperture Radar
06/06/2016 - 06/09/2016 at Hamburg, Germany
Proceedings: EUSAR 2016
Pages: 5Language: englishTyp: PDF
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Authors:
Kirkove, Murielle; Orban, Anne; Derauw, Dominique; Barbier, Christian (Centre Spatial de Liège, University of Liège, Belgium)
Abstract:
This paper presents a processor for the TOPS (Terrain Observation by Progressive Scans) imaging mode. TOPS signals have two characteristics that make the use of Stripmap SAR processors inconvenient, i.e., azimuth frequency and azimuth time foldings. This paper describes a processor based on the Ω-K (Ω-k) algorithm, combined with pre-processing by frequency unfolding and post-processing by time unfolding. Raw data acquired by Sentinel-1 have been used to assess the quality of image reconstruction.