J. Korean Inst. Electromagn. Eng.: Scenario Design and Analysis of Satellite SAR Jamming Performance by Ground Radar

Synthetic aperture radar (SAR) imaging is critical in military and national defense applications. Spaceborne SAR systems operate in fixed orbits, making them vulnerable to the jamming effects of ground radar signals. This study quantitatively analyzed jamming effects based on actual interference cases observed in the currently operational satellite SAR. Subsequently, various jamming scenarios were designed for hostile satellite SAR systems. SAR jamming simulations were conducted based on the ground radar specifications derived from real jamming cases by considering the jamming-to-clutter ratio (JCR) as a key metric for evaluating the jamming performance. The SAR image corruption was quantitatively analyzed for various ground jammers, with the results verified by comparison with real SAR jamming cases. This study attempted to understand the principles of satellite SAR jamming and contribute to the development of defense strategies against adversarial space surveillance systems in the near future.

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