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Rodrigues Silva Filho, Eduardo and Rodriguez Cassola, Marc and Moreira, Alberto and Krieger, Gerhard and Thölert, Steffen (2024) Proof-of-Concept of GNSS-based Phase Synchronization for Bistatic and Multistatic SAR Missions. In: Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR, pp. 131-136. European Conference on Synthetic Aperture Radar (EUSAR), 2024-04-23 - 2024-04-26, Munich, Germany. ISBN 978-3-8007-6286-6. ISSN 2197-4403.
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Abstract
This paper addresses the critical issue of phase synchronization in multistatic SAR. We present the experimental validation of a GNSS-based method, planned for use in the upcoming ESA’s Earth Explorer Harmony mission, where both the radar payload and GNSS receiver utilize the same oscillator. The paper outlines the experimental procedure for assessing the achievable accuracy and calibrating covariances. It presents a point-to-point estimation, and a smoothing approach based on a stochastic description of phase noise. The technique achieved in a lab environment relative synchronization errors below 515 fs (1 sigma), or 1 degree for a 5.4 GHz radar system.
| Item URL in elib: | https://elib.dlr.de/201071/ | ||||||||||||||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||||||
| Title: | Proof-of-Concept of GNSS-based Phase Synchronization for Bistatic and Multistatic SAR Missions | ||||||||||||||||||||||||
| Authors: |
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| Date: | 2024 | ||||||||||||||||||||||||
| Journal or Publication Title: | Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR | ||||||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||||||
| Open Access: | Yes | ||||||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||||||||||
| Page Range: | pp. 131-136 | ||||||||||||||||||||||||
| ISSN: | 2197-4403 | ||||||||||||||||||||||||
| ISBN: | 978-3-8007-6286-6 | ||||||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||||||
| Keywords: | Bistatic radar, multistatic radar, time and phase synchronization, calibration algorithms, performance analysis | ||||||||||||||||||||||||
| Event Title: | European Conference on Synthetic Aperture Radar (EUSAR) | ||||||||||||||||||||||||
| Event Location: | Munich, Germany | ||||||||||||||||||||||||
| Event Type: | international Conference | ||||||||||||||||||||||||
| Event Start Date: | 23 April 2024 | ||||||||||||||||||||||||
| Event End Date: | 26 April 2024 | ||||||||||||||||||||||||
| 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 - SAR methods | ||||||||||||||||||||||||
| Location: | Oberpfaffenhofen | ||||||||||||||||||||||||
| Institutes and Institutions: | Microwaves and Radar Institute > Radar Concepts | ||||||||||||||||||||||||
| Deposited By: | Rodrigues Silva Filho, Eduardo | ||||||||||||||||||||||||
| Deposited On: | 24 Jun 2024 13:40 | ||||||||||||||||||||||||
| Last Modified: | 24 Jun 2024 13:40 |
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