Vandewal, Marijke und Speck, Rainer und Süß, Helmut (2007) Efficient and Precise Processing for Squinted Spotlight SAR through a Modified Stolt Mapping. EURASIP Journal on Advances in Signal Processing, Seiten 1-7. Hindawi Publishing Corporation. doi: 10.1155/2007/59704.
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Offizielle URL: http://hindawi.com/GetArticle.aspx?doi=10.1155/2007/59704
Kurzfassung
Processing of squinted SAR spotlight data is a challenge because of the significant range migration effects of the raw data over the coherent aperture time. Although in theory the (ω, k)-algorithm takes care of these aspects, its digital implementation requires a time-consuming interpolation step. Moreover, the limited precision of this interpolation can introduce distortions at the edges of the final image especially for squinted geometries. A wave number domain processing using a modified Stolt mapping will be developed and analyzed to enhance the quality of the final SAR image. Additionally, the proposed algorithm has a decreased computational load compared to the original (ω,k)-algorithm. Simulation results will validate the focusing and efficiency performances of the modified wave number domain algorithm.
elib-URL des Eintrags: | https://elib.dlr.de/46485/ | ||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||
Titel: | Efficient and Precise Processing for Squinted Spotlight SAR through a Modified Stolt Mapping | ||||||||||||||||
Autoren: |
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Datum: | 2007 | ||||||||||||||||
Erschienen in: | EURASIP Journal on Advances in Signal Processing | ||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||
Open Access: | Nein | ||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||
DOI: | 10.1155/2007/59704 | ||||||||||||||||
Seitenbereich: | Seiten 1-7 | ||||||||||||||||
Verlag: | Hindawi Publishing Corporation | ||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||
Stichwörter: | Synthetic Aperture Radar, SAR, Processing, Spotlight, Stolt | ||||||||||||||||
HGF - Forschungsbereich: | Verkehr und Weltraum (alt) | ||||||||||||||||
HGF - Programm: | Weltraum (alt) | ||||||||||||||||
HGF - Programmthema: | W EO - Erdbeobachtung | ||||||||||||||||
DLR - Schwerpunkt: | Weltraum | ||||||||||||||||
DLR - Forschungsgebiet: | W EO - Erdbeobachtung | ||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | W - Projekt sicherheitsrelevante Erdbeobachtung (alt) | ||||||||||||||||
Standort: | Oberpfaffenhofen | ||||||||||||||||
Institute & Einrichtungen: | Institut für Hochfrequenztechnik und Radarsysteme > Aufklärung und Sicherheit | ||||||||||||||||
Hinterlegt von: | Speck, Dr.-Ing. Rainer | ||||||||||||||||
Hinterlegt am: | 22 Dez 2006 | ||||||||||||||||
Letzte Änderung: | 27 Apr 2009 13:22 |
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