An inter/intra-pulse partly coherent jamming style against Synthetic Aperture Radar

This paper proposed a kind of two-dimension partly coherent jamming style against Synthetic Aperture Radar (SAR) named stepped time-delay repeater jamming. Its repeated time-delay increases or deduces by a fixed increment during the irradiation of SAR. The research shows that the presented jamming style can obtain both range and azimuth coherent processing gains when through SAR system. In addition, its SAR imaging output covers some region which could be applied for distributed targets protection. Theoretical analysis and simulation experiments verify its validity.