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Scheiber, Rolf and Prats, Pau and Nannini, Matteo and Villano, Michelangelo and Morrison, Keith and Gebert, Nicolas (2014) Comparison of Digital Beamforming Techniques for Enhanced Ice Sounding Radar Data Processing. In: Proceedings of European Conference on Synthetic Aperture Radar (EUSAR), pp. 32-35. VDE Verlag GmbH. European Conference on Synthetic Aperture Radar (EUSAR), 2014-06-03 - 2014-06-06, Berlin, Germany. ISBN 978 3 8007 3607 2. ISSN 2197-4403.
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Abstract
Ice sounding radar from high altitudes is compromised by off-nadir ice surface reflections (clutter), which overlays the nadir signal of interest originating from the bedrock and/or internal ice layers. Multi-aperture antenna radar systems were developed to mitigate the impact of surface clutter allowing spatially variant digital beamforming (DBF) processing of the data received from the individual spatially separated apertures. This paper investigates four different beamforming algorithms: conventional beamsteering, nulling of clutter angles, optimum beamformer and the MVDR beamformer. Comparisons are performed based on simulations for an airborne ice sounding scenarios. In addition, real echograms are computed from data acquired by the P-band POLARIS sensor. Relevant conclusions are drawn with respect to the implementation of a future space-based ice sounding mission.
| Item URL in elib: | https://elib.dlr.de/85193/ | |||||||||||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | |||||||||||||||||||||
| Title: | Comparison of Digital Beamforming Techniques for Enhanced Ice Sounding Radar Data Processing | |||||||||||||||||||||
| Authors: |
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| Date: | 3 June 2014 | |||||||||||||||||||||
| Journal or Publication Title: | Proceedings of European Conference on Synthetic Aperture Radar (EUSAR) | |||||||||||||||||||||
| Refereed publication: | Yes | |||||||||||||||||||||
| Open Access: | Yes | |||||||||||||||||||||
| Gold Open Access: | No | |||||||||||||||||||||
| In SCOPUS: | No | |||||||||||||||||||||
| In ISI Web of Science: | No | |||||||||||||||||||||
| Page Range: | pp. 32-35 | |||||||||||||||||||||
| Publisher: | VDE Verlag GmbH | |||||||||||||||||||||
| ISSN: | 2197-4403 | |||||||||||||||||||||
| ISBN: | 978 3 8007 3607 2 | |||||||||||||||||||||
| Status: | Published | |||||||||||||||||||||
| Keywords: | polar ice sheets, surface clutter | |||||||||||||||||||||
| Event Title: | European Conference on Synthetic Aperture Radar (EUSAR) | |||||||||||||||||||||
| Event Location: | Berlin, Germany | |||||||||||||||||||||
| Event Type: | international Conference | |||||||||||||||||||||
| Event Dates: | 2014-06-03 - 2014-06-06 | |||||||||||||||||||||
| Organizer: | VDE | |||||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | |||||||||||||||||||||
| HGF - Program: | Space | |||||||||||||||||||||
| HGF - Program Themes: | Earth Observation | |||||||||||||||||||||
| DLR - Research area: | Raumfahrt | |||||||||||||||||||||
| DLR - Program: | R EO - Earth Observation | |||||||||||||||||||||
| DLR - Research theme (Project): | R - Aircraft SAR | |||||||||||||||||||||
| Location: | Oberpfaffenhofen | |||||||||||||||||||||
| Institutes and Institutions: | Microwaves and Radar Institute Microwaves and Radar Institute > SAR Technology Microwaves and Radar Institute > Radar Concepts | |||||||||||||||||||||
| Deposited By: | Scheiber, Dr.-Ing. Rolf | |||||||||||||||||||||
| Deposited On: | 08 Nov 2013 13:42 | |||||||||||||||||||||
| Last Modified: | 31 Jul 2019 19:42 |
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