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Matar, Jalal and Rodriguez Cassola, Marc and Krieger, Gerhard and Moreira, Alberto (2023) On the Equivalence of LEO-SAR Constellations and Complex High-Orbit SAR Systems for the Monitoring of Large-Scale Processes. IEEE Geoscience and Remote Sensing Letters. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/LGRS.2023.3337042. ISSN 1545-598X.
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Abstract
High Earth orbit Synthetic Aperture Radar (SAR) systems offer high temporal sampling and moderate spatial resolution on a global scale, potentially outperforming conventional Low Earth Orbit (LEO) systems in revisit times. However, this requires complex system architectures such as burst operation modes with multiple subswaths, large antennas, and digital beamforming. Similar temporal sampling and coverage enhancements can be realized with constellations of classical monostatic SAR instruments in LEO. This letter compares the complexity of such equivalent monostatic LEO-SAR constellations to complex high-altitude SAR systems and provides design numbers for two Medium Earth Orbit (MEO)-SAR mission examples and their LEO counterparts.
| Item URL in elib: | https://elib.dlr.de/199783/ | ||||||||||||||||||||
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| Document Type: | Article | ||||||||||||||||||||
| Title: | On the Equivalence of LEO-SAR Constellations and Complex High-Orbit SAR Systems for the Monitoring of Large-Scale Processes | ||||||||||||||||||||
| Authors: |
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| Date: | 27 November 2023 | ||||||||||||||||||||
| Journal or Publication Title: | IEEE Geoscience and Remote Sensing Letters | ||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||
| Open Access: | Yes | ||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||||||||||
| DOI: | 10.1109/LGRS.2023.3337042 | ||||||||||||||||||||
| Publisher: | IEEE - Institute of Electrical and Electronics Engineers | ||||||||||||||||||||
| ISSN: | 1545-598X | ||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||
| Keywords: | Constellations, Medium Earth Orbits (MEO), Synthetic Aperture Radar (SAR), system performance, small satellites. | ||||||||||||||||||||
| 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 missions | ||||||||||||||||||||
| Location: | Oberpfaffenhofen | ||||||||||||||||||||
| Institutes and Institutions: | Microwaves and Radar Institute > Radar Concepts | ||||||||||||||||||||
| Deposited By: | Matar, Jalal | ||||||||||||||||||||
| Deposited On: | 30 Nov 2023 12:44 | ||||||||||||||||||||
| Last Modified: | 17 Feb 2025 11:26 |
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