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Rodriguez-Cassola, Marc and Prats-Iraola, Pau and Krieger, Gerhard and Moreira, Alberto (2019) ON THE USE OF TIME-DOMAIN SAR FOCUSING IN SPACEBORNE SAR MISSIONS. In: International Geoscience and Remote Sensing Symposium (IGARSS). IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2019-07-28 - 2019-08-02, Yokohama, Japan. doi: 10.1109/igarss.2019.8900230.
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Abstract
This paper discusses the relevance and use of efficient focusing in the time domain in spaceborne SAR. With the increasing number of space-variant corrections required by higher resolution and wide swath observations, the efficiency of SAR focusing algorithms in the Fourier domain drops significantly. The main sources of space variance to be faced in future spaceborne SAR missions and their implications on the complexity of the focusing process are discussed. The paper also presents a direct comparison between time-Domain and frequency-domain approaches, providing an estimate of the computational burden of a fast-factorized backprojection algorithm compared to a sophisticated numerical Omega-k, identifying the operation areas where the the former may show an efficiency advantage
| Item URL in elib: | https://elib.dlr.de/128342/ | ||||||||||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||
| Title: | ON THE USE OF TIME-DOMAIN SAR FOCUSING IN SPACEBORNE SAR MISSIONS | ||||||||||||||||||||
| Authors: |
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| Date: | 2019 | ||||||||||||||||||||
| Journal or Publication Title: | International Geoscience and Remote Sensing Symposium (IGARSS) | ||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||
| Open Access: | No | ||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||||||
| DOI: | 10.1109/igarss.2019.8900230 | ||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||
| Keywords: | SAR processing, fast-factorized backprojection, numerical Omega-k, spaceborne SAR | ||||||||||||||||||||
| Event Title: | IEEE International Geoscience and Remote Sensing Symposium (IGARSS) | ||||||||||||||||||||
| Event Location: | Yokohama, Japan | ||||||||||||||||||||
| Event Type: | international Conference | ||||||||||||||||||||
| Event Start Date: | 28 July 2019 | ||||||||||||||||||||
| Event End Date: | 2 August 2019 | ||||||||||||||||||||
| Organizer: | IEEE | ||||||||||||||||||||
| 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 - SAR Expert Support Lab | ||||||||||||||||||||
| Location: | Oberpfaffenhofen | ||||||||||||||||||||
| Institutes and Institutions: | Microwaves and Radar Institute > Radar Concepts | ||||||||||||||||||||
| Deposited By: | Rodriguez Cassola, Marc | ||||||||||||||||||||
| Deposited On: | 15 Jul 2019 14:39 | ||||||||||||||||||||
| Last Modified: | 24 Apr 2024 20:31 |
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