Abstract
AbstractSynthetic Aperture Radar (SAR) jamming is of vital significance in the national defence aspect. In this study, a flexible blanket jamming method against SAR is proposed using joint frequency and phase modulation. The proposed method can form two‐dimensional square‐shaped blanket sidelobes in the SAR image by coded phase modulation in both fast and slow time domain. Then an extra frequency modulation is further executed to flexibly adjust the jamming centre. The target of interest (TOI) can get more effectively protected according to the different relative locations between the TOI and jammer. On this basis, the jamming performance evaluation and parameter design principles are discussed in detail. Finally, the validity of the proposed jamming method is verified by both the Yake‐42 aircraft simulation and measured SAR data experiment.
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