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MirrorSAR: A Fractionated Space Radar for Bistatic, Multistatic and High-Resolution Wide-Swath SAR Imaging

Krieger, Gerhard und Zonno, Mariantonietta und Rodriguez Cassola, Marc und Lopez Dekker, Paco und Mittermayer, Josef und Younis, Marwan und Huber, Sigurd und Villano, Michelangelo und Queiroz de Almeida, Felipe und Prats, Pau und Moreira, Alberto (2017) MirrorSAR: A Fractionated Space Radar for Bistatic, Multistatic and High-Resolution Wide-Swath SAR Imaging. In: International Geoscience and Remote Sensing Symposium (IGARSS). IEEE. IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017-07-23 - 2017-07-28, Fort Worth, USA. doi: 10.1109/IGARSS.2017.8126916.

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Kurzfassung

This paper introduces the new and highly capable concept of a fractionated MirrorSAR which has the potential to serve a wide range of Earth observation applications with unique remote sensing products. The proposed system is based on a set of mutually separated transmitter and receiver satellites. As opposed to previously published bi- and multistatic SAR systems, the receiver satellites are considerably simplified, as their main functionality is reduced to a kind of microwave mirror (or space transponder) which merely routes the radar echoes towards the transmitter(s). The routed signals from one or more receiver satellites are then coherently demodulated within the transmitter(s) by using the same oscillator that had been used for radar pulse generation. By this, one can avoid the necessity of a bidirectional phase synchronization link between the transmitter and receiver as currently employed in TanDEM X. The joint availability of all receiver signals in a centralized node offers moreover new opportunities for efficient data compression, as the multistatic radar signals from close satellite formations are characterized by a high degree of mutual redundancy. As the receiver satellites become rather simple in this approach, it becomes possible to scale their number without cost explosion, thereby paving the way for novel applications like multi-baseline SAR interferometry and single-pass tomography. Several additional opportunities make such a configuration even more attractive. First, the separation between the transmitter and receiver satellites enables a new approach to image ultra-wide swaths with very high resolution, thereby overcoming an inherent limitation of conventional monostatic SAR systems. Second, the system capabilities can be further scaled by adding multiple transmitters which enable several new MIMO-SAR modes including adaptive and hybrid MIMO-SAR imaging and MIMO-SAR tomography. A further advantage arises from the separation of the transmitter and receiver front-ends, which will reduce losses and allows for a significant reduction of the peak power by employing a highly efficient frequency-modulated continuous wave illumination (FMCW).

elib-URL des Eintrags:https://elib.dlr.de/114778/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:MirrorSAR: A Fractionated Space Radar for Bistatic, Multistatic and High-Resolution Wide-Swath SAR Imaging
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Krieger, GerhardGerhard.Krieger (at) dlr.dehttps://orcid.org/0000-0002-4548-0285NICHT SPEZIFIZIERT
Zonno, MariantoniettaMariantonietta.Zonno (at) dlr.dehttps://orcid.org/0000-0001-9537-1899NICHT SPEZIFIZIERT
Rodriguez Cassola, MarcMarc.Rodriguez (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Lopez Dekker, PacoNICHT SPEZIFIZIERTNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Mittermayer, JosefJosef.Mittermayer (at) dlr.dehttps://orcid.org/0000-0001-7238-4240NICHT SPEZIFIZIERT
Younis, Marwanmarwan.younis (at) dlr.dehttps://orcid.org/0000-0002-8563-7371NICHT SPEZIFIZIERT
Huber, SigurdSigurd.Huber (at) dlr.dehttps://orcid.org/0000-0001-7097-5127NICHT SPEZIFIZIERT
Villano, MichelangeloNICHT SPEZIFIZIERTNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Queiroz de Almeida, FelipeFelipe.QueirozdeAlmeida (at) dlr.dehttps://orcid.org/0000-0001-5929-6633NICHT SPEZIFIZIERT
Prats, PauPau.Prats (at) dlr.dehttps://orcid.org/0000-0002-7583-2309NICHT SPEZIFIZIERT
Moreira, AlbertoAlberto.Moreira (at) dlr.dehttps://orcid.org/0000-0002-3436-9653NICHT SPEZIFIZIERT
Datum:Juli 2017
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/IGARSS.2017.8126916
Verlag:IEEE
Status:veröffentlicht
Stichwörter:bistatic, multistatic, synchronisation, new space, fractionated, FMCW, interferometry, tomography
Veranstaltungstitel:IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Veranstaltungsort:Fort Worth, USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:23 Juli 2017
Veranstaltungsende:28 Juli 2017
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 - Entwicklung eines Mini-SAR, R - SAR-Missionen
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Hochfrequenztechnik und Radarsysteme > Radarkonzepte
Institut für Hochfrequenztechnik und Radarsysteme > SAR-Technologie
Institut für Hochfrequenztechnik und Radarsysteme
Hinterlegt von: Krieger, Dr.-Ing. Gerhard
Hinterlegt am:23 Okt 2017 08:15
Letzte Änderung:24 Apr 2024 20:19

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