Rodrigues Silva Filho, Eduardo und Rodriguez Cassola, Marc (2022) Experimental Evaluation of GNSS-Based Frequency Synchronization for SAR Applications. In: International Geoscience and Remote Sensing Symposium (IGARSS). IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2022-07-17 - 2022-07-22, Kuala Lumpur, Malaysia. doi: 10.1109/IGARSS46834.2022.9883501.
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Kurzfassung
Phase synchronization is a crucial requirement for bistatic and multistatic SAR missions. One possible solution for this problem could be to use the same master oscillator for the radar payload and the GNSS receiver, which could allow the recovery of the oscillator phase noise from the carrier phase measurements. This solution would be cost-effective and straightforward, but its effectiveness depends on whether the GNSS receiver would maintain the spectral purity of the master oscillator internally. We executed zero and short baseline experiments to evaluate this technique with a commercial receiver. Despite some unexpected signatures on the carrier phase single-difference measurements, we achieved frequency synchronization of less than 10 ppm and phase synchronization of less than one degree at the L1 carrier frequency after applying a moving average filter of one second at a 10 Hz sampling rate. The results suggest the feasibility of the GNSS-based phase synchronization concept, but further experiments are necessary to evaluate it thoroughly.
elib-URL des Eintrags: | https://elib.dlr.de/186490/ | ||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||
Titel: | Experimental Evaluation of GNSS-Based Frequency Synchronization for SAR Applications | ||||||||||||
Autoren: |
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Datum: | 2022 | ||||||||||||
Erschienen in: | International Geoscience and Remote Sensing Symposium (IGARSS) | ||||||||||||
Referierte Publikation: | Ja | ||||||||||||
Open Access: | Ja | ||||||||||||
Gold Open Access: | Nein | ||||||||||||
In SCOPUS: | Ja | ||||||||||||
In ISI Web of Science: | Nein | ||||||||||||
DOI: | 10.1109/IGARSS46834.2022.9883501 | ||||||||||||
Status: | veröffentlicht | ||||||||||||
Stichwörter: | Bistatic radar, multistatic radar, frequency synchronization, phase synchronization, GNSS | ||||||||||||
Veranstaltungstitel: | IEEE International Geoscience and Remote Sensing Symposium (IGARSS) | ||||||||||||
Veranstaltungsort: | Kuala Lumpur, Malaysia | ||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||
Veranstaltungsbeginn: | 17 Juli 2022 | ||||||||||||
Veranstaltungsende: | 22 Juli 2022 | ||||||||||||
Veranstalter : | IEEE GRSS | ||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||
HGF - Programm: | Raumfahrt | ||||||||||||
HGF - Programmthema: | Erdbeobachtung | ||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||
DLR - Forschungsgebiet: | R EO - Erdbeobachtung | ||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - SAR-Missionen, R - Polarimetrische SAR-Interferometrie HR | ||||||||||||
Standort: | Oberpfaffenhofen | ||||||||||||
Institute & Einrichtungen: | Institut für Hochfrequenztechnik und Radarsysteme | ||||||||||||
Hinterlegt von: | Rodrigues Silva Filho, Eduardo | ||||||||||||
Hinterlegt am: | 09 Jun 2022 07:17 | ||||||||||||
Letzte Änderung: | 24 Apr 2024 20:47 |
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