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15 October 2015 Implementation of a fast time-domain processor for FMCW Synthetic Aperture Radar data
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For the purpose of getting sensitive information relevant to civil or military security, high-resolution airborne Synthetic Aperture Radar (SAR) provides the possibility to organize missions at short notice regardless of the daylight and of the weather conditions. The use of compact millimeter-wave FMCW SAR systems allows reaching these goals more safely and at lower cost using unmanned lightweight platforms. As a counterpart these platforms are relatively unstable, making the data-processing more difficult. In order to reach optimum focusing quality also in unfavorable flight conditions or for highly non-linear tracks we developed a fast Time-Domain Processor that relies on parallelization using the GPU resources. A production areal processing rate as high as 6 km2/h using 20 cm ground pixel spacing on a single PC station was achieved. The processing quality and efficiency is demonstrated using real data from the MIRANDA35 Ka-band SAR system.
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Max Frioud, Peter Wellig, Stephan Stanko, and Erich Meier "Implementation of a fast time-domain processor for FMCW Synthetic Aperture Radar data", Proc. SPIE 9642, SAR Image Analysis, Modeling, and Techniques XV, 96420B (15 October 2015);


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