TerraSAR-X Staring Spotlight Mode Optimization and Global Performance Predictions

For the TerraSAR-X mission, a new staring spotlight mode has been implemented delivering very high azimuth resolution. Detailed performance analyses have been conducted to optimize the commanding parameters for this mode. Compared to the previously available TerraSAR-X imaging modes, staring spotlig...

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Bibliographic Details
Published in:IEEE journal of selected topics in applied earth observations and remote sensing 2016-03, Vol.9 (3), p.1015-1027
Main Authors: Kraus, Thomas, Brautigam, Benjamin, Mittermayer, Josef, Wollstadt, Steffen, Grigorov, Christo
Format: Article
Language:English
Subjects:
Acquisitions
Antennas
Azimuth
High resolution
Marketing
Optimization
Orbits
Performance assessment
Phases
Radar imaging
Simulation
Specifications
staring spotlight
Synthetic aperture radar
synthetic aperture radar (SAR)
TerraSAR-X
Timing
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Summary:For the TerraSAR-X mission, a new staring spotlight mode has been implemented delivering very high azimuth resolution. Detailed performance analyses have been conducted to optimize the commanding parameters for this mode. Compared to the previously available TerraSAR-X imaging modes, staring spotlight requires operating the instrument with minimum margins and at the edge of the specifications, the radar has been designed for. Therefore, an additional step-a global acquisition simulation and analysis-is introduced during the operationalization to ensure the suitability of the derived commanding parameters on a global scale. This paper gives an overview of SAR performance analyses conducted for the mode optimization and implementation phases and presents a novel global performance assessment approach, which is generally applicable for the verification of operational SAR modes. Additionally, measurement results and exemplary acquisitions are shown.
ISSN:1939-1404
2151-1535
DOI:10.1109/JSTARS.2015.2431821