Pardini, Matteo und Papathanassiou, Konstantinos (2014) A Two-Step Phase Calibration Method for Tomographic Applications with Airborne SAR Data. In: Proceedings of 2014 European Conference on Synthetic Aperture Radar (EUSAR), Seiten 1-4. VDE. European Conference on Synthetic Aperture Radar (EUSAR), 2014-06-03 - 2014-06-05, Berlin, Germany.
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Kurzfassung
The extraction of accurate information from repeat-pass airborne multi-baseline (MB) synthetic aperture radar (SAR) data stacks requires a very careful phase calibration to compensate for residual baseline errors. Focusing on tomographic applications, in this paper we experiment a two-step phase calibration algorithm which is independent of the nature of scattering and can operate with an arbitrarily low number of images. In a first step, the baseline errors with respect to the master acquisition are estimated by means of a multisquint processing carried out for each single baseline with respect to the master acquisition. In a second step, the residual phase errors are compensated by means of a coherent optimization based on the minimization of the entropy of the tomographic profiles. The effectiveness of this two-step procedure is tested with MB airborne data sets acquired at different frequencies over forest and ice scenarios.
elib-URL des Eintrags: | https://elib.dlr.de/93610/ | ||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||
Titel: | A Two-Step Phase Calibration Method for Tomographic Applications with Airborne SAR Data | ||||||||||||
Autoren: |
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Datum: | 5 Juni 2014 | ||||||||||||
Erschienen in: | Proceedings of 2014 European Conference on Synthetic Aperture Radar (EUSAR) | ||||||||||||
Referierte Publikation: | Ja | ||||||||||||
Open Access: | Ja | ||||||||||||
Gold Open Access: | Nein | ||||||||||||
In SCOPUS: | Nein | ||||||||||||
In ISI Web of Science: | Nein | ||||||||||||
Seitenbereich: | Seiten 1-4 | ||||||||||||
Verlag: | VDE | ||||||||||||
Status: | veröffentlicht | ||||||||||||
Stichwörter: | SAR, Tomography, Phase calibration, Minimum Entropy | ||||||||||||
Veranstaltungstitel: | European Conference on Synthetic Aperture Radar (EUSAR) | ||||||||||||
Veranstaltungsort: | Berlin, Germany | ||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||
Veranstaltungsbeginn: | 3 Juni 2014 | ||||||||||||
Veranstaltungsende: | 5 Juni 2014 | ||||||||||||
Veranstalter : | VDE | ||||||||||||
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 - Vorhaben Fernerkundung der Landoberfläche (alt) | ||||||||||||
Standort: | Oberpfaffenhofen | ||||||||||||
Institute & Einrichtungen: | Institut für Hochfrequenztechnik und Radarsysteme > Radarkonzepte | ||||||||||||
Hinterlegt von: | Pardini, Dr.-Ing. Matteo | ||||||||||||
Hinterlegt am: | 15 Dez 2014 08:07 | ||||||||||||
Letzte Änderung: | 24 Apr 2024 19:59 |
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