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Evaluation of resolution of GEO-SAR images based on geometric correction

One of the most important properties in geosynchronous synthetic aperture radar (GEO-SAR) is the resolution in the ground range plane, whose relationship with resolution in the slant range plane is complicated, which results in evaluation difficulties. This paper proposes a method of evaluation of the ground resolution using geometric correction, while transforming the GEO-SAR images from the slant range plane to the ground range plane. Simulation results verify the effectiveness of the proposed method.