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Weizeng, Shao und Lehner, Susanne und Changlong, Guan (2012) Study on Polarisation Ratio for X-Band Using Dual-Polarisation Terra-SAR X Image. In: International Geoscience and Remote Sensing Symposium (IGARSS), Seiten 3768-3771. IEEE Press. IGARSS 2012 , 2012-07-22 - 2012-07-27, Munich, Germany. doi: 10.1109/IGARSS.2012.6350497. ISBN 978-1-4673-1158-8 (e) 978-1-4673-1160-1 (p). ISSN 2153-6996.
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Offizielle URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=6350497
Kurzfassung
In this study, we present the analysis of measurements of normalized radar cross section (NRCS) and the polarisation ratio (PR) in dual-polarisation TerraSAR-X (TS-X) images. Based on two PR functions proposed for C-band SAR (denoted as the Thompson model and Elfouhaily model respectively) and the relationship between NRCS and incidence angle for X-band (it is called X-PR), three PR models are tuned using 45 dual-polarisation TS-X images. The PR is found to be dependent of the incidence angle and VV-polarisation NRCS is larger than HH-polarisation NRCS when the incidence angle is larger than 23°. A total of 20 HH-polarisation TS-X images are analyzed for retrieving the wind field using three PR models and XMOD algorithm together. The results are compared to QuikSCAT data and buoy measurements for validation. The root-mean-square error (RMSE) of wind speed is 2.34m/s, 2.16m/s and 1.99m/s with a correlation of 0.82, 0.87 and 0.88 by using Thompson model, Elfouhaily model and X-PR model respectively for the cases.
| elib-URL des Eintrags: | https://elib.dlr.de/79255/ | ||||||||||||||||
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| Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||
| Titel: | Study on Polarisation Ratio for X-Band Using Dual-Polarisation Terra-SAR X Image | ||||||||||||||||
| Autoren: |
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| Datum: | 10 November 2012 | ||||||||||||||||
| Erschienen in: | International Geoscience and Remote Sensing Symposium (IGARSS) | ||||||||||||||||
| Referierte Publikation: | Nein | ||||||||||||||||
| Open Access: | Nein | ||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||
| In SCOPUS: | Ja | ||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||
| DOI: | 10.1109/IGARSS.2012.6350497 | ||||||||||||||||
| Seitenbereich: | Seiten 3768-3771 | ||||||||||||||||
| Verlag: | IEEE Press | ||||||||||||||||
| ISSN: | 2153-6996 | ||||||||||||||||
| ISBN: | 978-1-4673-1158-8 (e) 978-1-4673-1160-1 (p) | ||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||
| Stichwörter: | TerraSAR-X , XMOD , polarisation ratio , wind field | ||||||||||||||||
| Veranstaltungstitel: | IGARSS 2012 | ||||||||||||||||
| Veranstaltungsort: | Munich, Germany | ||||||||||||||||
| Veranstaltungsart: | internationale Konferenz | ||||||||||||||||
| Veranstaltungsbeginn: | 22 Juli 2012 | ||||||||||||||||
| Veranstaltungsende: | 27 Juli 2012 | ||||||||||||||||
| 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 - Vorhaben hochauflösende Fernerkundungsverfahren (alt) | ||||||||||||||||
| Standort: | Oberpfaffenhofen | ||||||||||||||||
| Institute & Einrichtungen: | Institut für Methodik der Fernerkundung > SAR-Signalverarbeitung | ||||||||||||||||
| Hinterlegt von: | UNGÜLTIGER BENUTZER | ||||||||||||||||
| Hinterlegt am: | 03 Dez 2012 12:59 | ||||||||||||||||
| Letzte Änderung: | 24 Apr 2024 19:45 |
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