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Efficient SAR Raw Data Generation Including Low Squint Angles and Platform Instabilities

Vandewal, Marijke and Speck, Rainer and Süß, Helmut (2008) Efficient SAR Raw Data Generation Including Low Squint Angles and Platform Instabilities. IEEE Geoscience and Remote Sensing Letters, 5 (1), pp. 26-30. IEEE. DOI: 10.1109/LGRS.2007.907419. ISSN 1545-598X.

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The performance of high-resolution synthetic aperture radar (SAR) systems under degrading conditions such as uncontrolled platform motion can only be analyzed and evaluated by modeling the whole imaging system through simulation. A major scientific problem, however, is the generation of spotlight mode SAR raw data because of the need for high numerical and modeling accuracy, and restricted computer time and space. Taking into account a squinted geometry and platform instabilities, the common generation of raw data in the time domain becomes time inefficient. This letter proposes a raw data generator with which the spotlight mode raw data set of an extended scene can be simulated and which combines the precision obtainable when working in the time domain with the efficiency of work in the frequency domain. The generated raw data are processed and analyzed to quantify the quality of the proposed simulation tool.

Document Type:Article
Title: Efficient SAR Raw Data Generation Including Low Squint Angles and Platform Instabilities
AuthorsInstitution or Email of Authors
Vandewal, MarijkeRoyal Military Academy, Belgium
Date:16 January 2008
Journal or Publication Title:IEEE Geoscience and Remote Sensing Letters
Refereed publication:Yes
In ISI Web of Science:Yes
Page Range:pp. 26-30
Keywords:Airborne, motion errors, raw data generation, simulation, spotlight mode, synthetic aperture radar, SAR
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Projekt sicherheitsrelevante Erdbeobachtung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Reconnaissance and Security
Deposited By: Dr.-Ing. Rainer Speck
Deposited On:05 Feb 2008
Last Modified:27 Apr 2009 14:43

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